something that is bent is no longer flat or straight:
a bent nail
Stand with your knees slightly bent.
He breathed in deeply, bent double in pain (=with the top part of your body leaning forward towards your legs).
a bent old man (=not standing straight)
completely determined to do something, especially something bad:
a crowd of hooligans bent on violence
be bent on doing something➔ hell-bent
They seemed bent on destroying his career.
3 British English informal
financially dishonest and willing to use your official position unfairly [≠ honest]:
a bent policeman
4 British English informal not polite
an insulting word meaning homosexual
5 American English spoken
very angry or upset