»banjaxed

Thanks to the esteemed Mr O Connor, I was reminded of banjax, verb: 



banjaxes, banjaxed, banjaxing

1. To ruin, stymie or destroy.

Etymology: 1930s: Anglo-Irish.

But what else did you expect from swearing dot org? Google Print cites a half-dozen works for banjax, but three are dictionaries!

salim filed this under lingo at 01h58 Wednesday, 05 October 2005 (link) (Yr two bits?)