Banjax

//ˈbæn.d͡ʒæks// noun, verb, slang

noun, verb, slang ·Moderate ·College level

Definitions

Noun
  1. 1
    A mess or undesirable situation made as a result of incompetence. Ireland, informal

    "I'm tellin' you the scholar, Bentham, made a banjax o' th' Will."

Verb
  1. 1
    To ruin or destroy. UK, slang

    "I hoofed his backside till he went down all of a heap. That banjaxed his little game. You should have heard his hullabulloo."

Example

More examples

"I hoofed his backside till he went down all of a heap. That banjaxed his little game. You should have heard his hullabulloo."

Etymology

Unknown, perhaps originally Dublin slang. According to Green’s Dictionary of Slang, may be a euphemism for bollocks.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.