Definition of banjax in English:

banjax

verb

[WITH OBJECT]usually as adjective banjaxed
informal
  • Ruin, incapacitate, or break:

    ‘the kettle's banjaxed’
    • ‘I'm definitely going to have to get something done about my teeth, because they're banjaxed.’
    • ‘That's where nearly all of Galway city and county gets their drinking water and if that gets polluted, we're banjaxed.’
    • ‘Come into work feeling like an idiot, go straight up to the person in charge of you and explain that your alarm clock was banjaxed or something.’
    • ‘But the logic is it is that unless we are all participating then we are banjaxed.’
    • ‘Many of the best experiences of my life, as well as some of the worst, have come about as a result of my being banjaxed.’
    wreck, ruin, spoil, disrupt, undo, upset, play havoc with, make a mess of, put an end to, end, bring to an end, put a stop to, terminate, prevent, frustrate, blight, crush, quell, quash, dash, scotch, shatter, vitiate, blast, devastate, demolish, sabotage, torpedo
    View synonyms

Origin

1930s: originally Anglo-Irish, of unknown origin.

Pronunciation

banjax

/ˈbandʒaks/