Definition of goof
(Entry 1 of 2)
1
: a silly or stupid person
2
: blunder
goof
verb
goofed; goofing; goofs
Definition of goof (Entry 2 of 2)
1a
: to spend time idly or foolishly
—usually used with off goofing off instead of working
b
: to engage in playful activity
—usually used with around goofing around after school
2
: to make a usually foolish or careless mistake : blunder
—often used with up
: to make a mess of : bungle
—usually used with up goofed up the assignment
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Share goof
Time Traveler for goof
The first known use of goof was in 1915
See more words from the same year