[ muhk ]
/ mʌk /
moist farmyard dung, decaying vegetable matter, etc.; manure.
a highly organic, dark or black soil, less than 50 percent combustible, often used as a manure.
filth, dirt, or slime.
defamatory or sullying remarks.
a state of chaos or confusion: to make a muck of things.
Chiefly British Informal. something of no value; trash.
(especially in mining) earth, rock, or other useless matter to be removed in order to get out the mineral or other substances sought.
verb (used with object)
to make dirty; soil.
to remove muck from (sometimes followed by out).
- to ruin; bungle (often followed by up).
- to put into a state of complete confusion (often followed by up).
muck about/around, Informal. to idle; waste time; loiter.
Words nearby muck
Origin of muck
1200–50; Middle English muc, muk < Old Norse myki cow dung
Definition for muck up (2 of 2)
[ muhk-uhp ]
/ ˈmʌkˌʌp /
a bungled or disordered situation; foul-up.
Origin of muck-up
First recorded in 1925–30; noun use of verb phrase muck up
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for muck up (1 of 2)
verb (adverb) informal
(tr) British and Australian to ruin or spoil; make a mess of
(intr) Australian to misbehave
British Dictionary definitions for muck up (2 of 2)
/ (mʌk) /
to spread manure upon (fields, gardens, etc)
to soil or pollute
(often foll by out) to clear muck from
Word Origin for muck
C13: probably of Scandinavian origin; compare Old Norse myki dung, Norwegian myk
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 muck up
Bungle, damage, make a mess of, as in Don't let him write the review; he's sure to muck it up. This idiom alludes to the verb muck in the sense of “spread manure on.” [Early 1900s] For a synonym, see foul up.
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.