Pronunciation: (gOOf), [key] Slang.
1. to blunder; make an error, misjudgment, etc.
2. to waste or kill time; evade work or responsibility (often fol. by off or around): Exam week is not a time to goof off. We goofed around till train time.
1. to spoil or make a mess of (something); botch; bungle (often fol. by up): You really goofed up the job.
2. goof on, Slang.to tease, ridicule, or mock; make fun of.
1. a foolish or stupid person.
2. a mistake or blunder, esp. one due to carelessness.
3. a source of fun or cause for amusement: We short-sheeted his bunk just for a goof.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.