goof Slang. noun
1. An incompetent, foolish, or stupid
2. A careless mistake; a slip.
goofed, goofing, goofs verb, intransitive
1. To make a silly mistake;
2. To waste or kill time.
To spoil, as through clumsiness;
bungle: goof up a job.
why do you goof around all the time?
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