Definition of bish in English:

bish

noun

British
informal, dated
  • A mistake or blunder.

    • ‘No mistakes are made but there are lots of “frantic bishes” which cause Mr. Wilkins to go in for roof-level attacks.’
    hurl, smash, crash, slam, throw, toss, fling, pitch, cast, lob, launch, flip, catapult, shy, aim, direct, project, propel, send, bowl
    View synonyms

Origin

1930s: of unknown origin.

Pronunciation:

bish

/bɪʃ/