/ guːf; NAmE / verb , noun
■ verb
[ v ] ( informal , especially NAmE ) to make a stupid mistake :
Sorry, guys. I goofed.
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PHRASAL VERBS
- goof around
- goof off
■ noun ( informal , especially NAmE )
1.
a stupid mistake
2.
a silly or stupid person
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WORD ORIGIN
early 20th cent.: of unknown origin.