1. (v) A slightly more polite way to say "Fuck off you prick".

A taunting phrase, essentially meaning "I don't care," used to defend oneself's actions, characteristics, or values following an accusation.

I would have to beleive that originally 'bite me' was a slightly more acceptable way of saying 'blow me.' Just like people use fricken istead of fuckin.

Although I think it has evolved to really just mean something like 'Fuck Off!'

a phrase used in scorn, usually used after someone either a) insults you, or b) tries to tell you what to do

shut up
get the hell outta here
Fuck off

An aggressive way to say no.