Synonyms: leave, get out, take yourself off, go your way, etc.
Definition of Piss Off
idiom (vulgar slang, British)
1. phrasal verb, used as a rude way of telling someone to go away;
2. fed up
Pack your stuff and piss off.Now I want to be alone, please piss off. You get really pissed off applying for jobs all the time.Everyone just pissed off and left me to clean up.He pissed off before we got there.