Search Result for "slip-up": 
Wordnet 3.0

NOUN (1)

1. a minor inadvertent mistake usually observed in speech or writing or in small accidents or memory lapses etc.;
[syn: slip, slip-up, miscue, parapraxis]



WordNet (r) 3.0 (2006):

slip-up
    n 1: a minor inadvertent mistake usually observed in speech or
         writing or in small accidents or memory lapses etc. [syn:
         slip, slip-up, miscue, parapraxis]