- to blunder; make an error, misjudgment, etc.
- to waste or kill time; evade work or responsibility (often followed by off or around): Exam week is not a time to goof off. We goofed around till train time.
- to spoil or make a mess of (something); botch; bungle (often followed by up): You really goofed up the job.
- a foolish or stupid person.
- a mistake or blunder, especially one due to carelessness.
- a source of fun or cause for amusement: We short-sheeted his bunk just for a goof.
- goof on, Slang. to tease, ridicule, or mock; make fun of.
Origin of goof
- a person who habitually makes mistakes, spoils things, gets into trouble, etc., especially through carelessness or irresponsibility.
- a mistake, blunder, malfunction, or the like.
Origin of goof-up
- a foolish error or mistake
- a stupid person
- to bungle (something); botch
- (intr; often foll by about or around) to fool (around); mess (about)
- (tr) to dope with drugs
- (intr often foll by off) US and Canadian to waste time; idle
Word Origin and History for goof up
"waste time," 1932; "make a mistake," 1941, from goof (n.). Goof off "loaf" is also from 1941. Related: Goofed; goofing.
1916, American English, "stupid person," perhaps a variant of English dialect goff "foolish clown" (1869), from 16c. goffe, probably from Middle French goffe "awkward, stupid," of uncertain origin. Or English goffe may be from Middle English goffen "speak in a frivolous manner," possibly from Old English gegaf "buffoonery," and gaffetung "scolding." Sense of "a blunder" is c.1954, probably influenced by gaffe.
Idioms and Phrases with goof up
Blunder, make a mistake, spoil. For example, I really goofed up and got all the dates wrong. This expression emerged in the military during World War II, along with the synonymous goof off. Quite often up is omitted, as in Sorry, I goofed. [Slang; c. 1940]