Wiktionary
banjaxed
1 (context British and Ireland slang English) broken, ruined, shattered; confounded. 2 (context British and Ireland slang English) tired, sleepy, cream crackered. v
(en-past of: banjax)
Usage examples of "banjaxed".
You look pretty good for someone with banjaxed lungs and a medical discharge.
I was banjaxed, out for luncheon, voiceless and mindless, for -the first time in my life caught without a wisecrack behind which to take refuge.
Look at the way he banjaxed Calton Hill as a site, all because he worried it was a "Nationalist symbol".
The computers went down and Jemmy thinks they're totally banjaxed now" Clisser said glumly, flopping into the chair at his desk, his body slack in despair.