Definition of slip up in English:

slip up

  • informal Make a careless error: they often slipped up when it came to spelling
    More example sentences
    • As these volumes demonstrate, scholars take endless pleasure in drawing attention to the great man's shortcomings, as it is in the moments when he slips up that Holmes becomes almost human.
    • She only feels ill when she slips up and eats dairy products.
    • It is said in Washington that a gaffe is when someone slips up and tells the truth.
    Synonyms
    make a mistake, (make a) blunder, get something wrong, make an error, err
    informal make a boo-boo, goof up
See parent entry: slip

More definitions of slip up

Definition of slip up in:

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day kerf
Pronunciation: kərf
noun
a slit made by cutting with a saw