[ slip-uhp ]
/ ˈslɪpˌʌp /
a mistake, blunder, or oversight: Several slip-ups caused a delay in the delivery of the books.
👍 - thumbs up emoji - What does the thumbs up emoji mean?Read more in this article about some frequently asked questions and fun facts related to our definitions.
9 Synonyms For “Screwing Up”We’ve all had moments where we’ve really and truly screwed something up. An epic mistake (OK, maybe not on a historic, global scale like the February 26, 2017 Oscars). But still, we’re human, and mistakes do happen. There are a lot of words to describe things going south in a hurry. We’ve gathered a few here. You’ll notice they’re all very close in definition. Maybe …
Origin of slip-up
First recorded in 1850–55; noun use of verb phrase slip up
Definition for slip up (2 of 2)
[ slip ]
/ slɪp /
verb (used without object), slipped or (Archaic) slipt; slipped; slip·ping.
to move, flow, pass, or go smoothly or easily; glide; slide: Water slips off a smooth surface.
to slide suddenly or involuntarily; to lose one's foothold, as on a smooth surface: She slipped on the icy ground.
to move, slide, or start gradually from a place or position: His hat had slipped over his eyes.
to slide out of or become disengaged from a fastening, the grasp, etc.: The soap slipped from my hand.
to pass without having been acted upon or used; be lost; get away: to let an opportunity slip.
to pass from the mind, memory, or consciousness.
to elapse or pass quickly or imperceptibly (often followed by away or by): The years slipped by.
to become involved or absorbed easily: to slip into a new way of life.
to move or go quietly, cautiously, or unobtrusively: to slip out of a room.
to put on or take off a garment easily or quickly: She slipped on the new sweater. He slipped off his shoes.
to make a mistake or error: As far as I know, you haven't slipped once.
to fall below a standard or accustomed level, or to decrease in quantity or quality; decline; deteriorate: His work slipped last year.
to be said or revealed inadvertently (usually followed by out): The words just slipped out.
to read, study, consider, etc., without attention: He slipped over the most important part.
Aeronautics. (of an aircraft when excessively banked) to slide sideways, toward the center of the curve described in turning.Compare skid(def 15).
verb (used with object), slipped or (Archaic) slipt; slipped; slip·ping.
to cause to move, pass, go, etc., with a smooth, easy, or sliding motion.
to put, place, pass, insert, or withdraw quickly or stealthily: to slip a letter into a person's hand.
to put on or take off (a garment) easily or quickly: He slipped the shirt over his head.
to let or make (something) slide out of a fastening, the hold, etc.: I slipped the lock, and the door creaked open.
to release from a leash, harness, etc., as a hound or a hawk.
to get away or free oneself from; escape (a pursuer, restraint, leash, etc.): The cow slipped its halter.
to untie or undo (a knot).
Nautical. to let go entirely, as an anchor cable or an anchor.
to pass from or escape (one's memory, attention, knowledge, etc.).
to dislocate; put out of joint or position: I slipped a disk in my back.
to shed or cast: The rattlesnake slipped its skin.
to ignore, pass over, or omit, as in speaking or writing.
to let pass unheeded; neglect or miss.
Boxing. to evade or avoid (a blow) by moving or turning the body quickly: He slipped a right and countered with a hard left.
(of animals) to bring forth (offspring) prematurely.
British. to detach (a railway car) from a moving train as it passes through a station.
an act or instance of slipping.
a sudden losing of one's foothold, as on slippery ground.
a mistake in judgment; blunder.
a mistake or oversight, as in speaking or writing, especially a small one due to carelessness: a minor slip in addition; a slip of the tongue.
an error in conduct; indiscretion.
something easily slipped on or off.
a decline or fall in quantity, quality, extent, etc., or from a standard or accustomed level: a slip in prices.
- a woman's undergarment, sleeveless and usually having shoulder straps, extending from above the bust down to the hemline of the outer dress.
- an underskirt, as a half-slip or petticoat.
an inclined plane, sloping to the water, on which vessels are built or repaired.
Nautical. the difference between the speed at which a screw propeller or paddle wheel would move if it were working against a solid and the actual speed at which it advances through the water.
a space between two wharves or in a dock for vessels to lie in.
Electricity. the difference between the synchronous and the operating speeds of a motor.
- the difference between output speed and input or theoretical speed in certain fluid or electromagnetic devices, as couplings or motors.
- (in pumps) the difference between the actual volume of water or other liquid delivered by a pump during one complete stroke and the theoretical volume as determined by calculation of the displacement.
unintended movement or play between mechanical parts or the like.
- the position of a fielder who stands behind and to the offside of the wicketkeeper.
- the fielder playing this position.
- the relative displacement of formerly adjacent points on opposite sides of a fault, measured along the fault plane.
- a small fault.
Also called glide. Metallurgy. plastic deformation of one part of a metallic crystal relative to the other part due to shearing action.
- to depart quietly or unobtrusively; steal off.
- to recede; slowly vanish: All those facts I had memorized just slipped away.
slip up, to make an error; fail: I slipped up and put the letter in the wrong envelope.
Origin of slip1
1250–1300; (v.) Middle English slippen < Middle Dutch slippen; cognate with Old High German slipfen; (noun) late Middle English slippe, derivative of or akin to the v.; compare Old High German slipf a sliding, slipping, error; akin to slipper2
Related formsslip·less, adjectiveslip·ping·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for slip up (1 of 4)
verb (intr, adverb)
informal to make a blunder or mistake; err
to fall overhe slipped up in the street
informal a mistake, blunder, or mishap
British Dictionary definitions for slip up (2 of 4)
/ (slɪp) /
verb slips, slipping or slipped
to move or cause to move smoothly and easily
(tr) to place, insert, or convey quickly or stealthily
(tr) to put on or take off easily or quicklyto slip on a sweater
(intr) to lose balance and slide unexpectedlyhe slipped on the ice
to let loose or be let loose
to be released from (something); escape
(tr) to let go (mooring or anchor lines) over the side
(when intr, often foll by from or out of) to pass out of (the mind or memory)
(tr) to overlook, neglect, or missto slip an opportunity
(intr) to move or pass swiftly or unperceivedto slip quietly out of the room
(intr sometimes foll by up) to make a mistake
Also: sideslip to cause (an aircraft) to slide sideways or (of an aircraft) to slide sideways
(intr) to decline in health, mental ability, etc
(intr) (of an intervertebral disc) to become displaced from the normal position
(tr) to dislocate (a bone)
(of animals) to give birth to (offspring) prematurely
(tr) to pass (a stitch) from one needle to another without knitting it
- (tr) to operate (the clutch of a motor vehicle) so that it partially disengages
- (intr) (of the clutch of a motor vehicle) to fail to engage, esp as a result of wear
- to allow to escape
- to say unintentionally
slip one over on slang to hoodwink or trick
the act or an instance of slipping
a mistake or oversighta slip of the pen
a moral lapse or failing
a woman's sleeveless undergarment, worn as a lining for and to give support to a dress
US and Canadian a narrow space between two piers in which vessels may dock
a kind of dog lead that allows for the quick release of the dog
a small block of hard steel of known thickness used for measurement, usually forming one of a set
the ratio between output speed and input speed of a transmission device when subtracted from unity, esp of a drive belt or clutch that is not transmitting full power
- the position of the fielder who stands a little way behind and to the offside of the wicketkeeper
- the fielder himself
the relative movement of rocks along a fault plane
a landslide, esp one blocking a road or railway line
metallurgy crystallog the deformation of a metallic crystal caused when one part glides over another part along a plane
the deviation of a propeller from its helical path through a fluid, expressed as the difference between its actual forward motion and its theoretical forward motion in one revolution
another name for sideslip (def. 1)
give someone the slip to elude or escape from someone
See also slip up
Derived Formsslipless, adjective
Word Origin for slip
C13: from Middle Low German or Dutch slippen
British Dictionary definitions for slip up (3 of 4)
/ (slɪp) /
a narrow piece; strip
a small piece of papera receipt slip
a part of a plant that, when detached from the parent, will grow into a new plant; cutting; scion
a young slender persona slip of a child
dialect a young pig
- a long galley
- a less common name for a galley proof
mainly US a pew or similar long narrow seat
a small piece of abrasive material of tapering section used in honing
verb slips, slipping or slipped
(tr) to detach (portions of stem, etc) from (a plant) for propagation
Word Origin for slip
C15: probably from Middle Low German, Middle Dutch slippe to cut, strip
British Dictionary definitions for slip up (4 of 4)
/ (slɪp) /
clay mixed with water to a creamy consistency, used for decorating or patching a ceramic piece
Word Origin for slip
Old English slyppe slime; related to Norwegian slipa slime on fish; see slop 1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Idioms and Phrases with slip up (1 of 2)
Make a mistake, blunder, as in I slipped up and gave the invitations to the wrong people. [Mid-1800s]
Idioms and Phrases with slip up (2 of 2)
In addition to the idioms beginning with slip
- slip a cog
- slip of the lip
- slip one's mind
- slip out
- slip something over on
- slip through one's fingers
- slip up
- give the slip
- let slip
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.