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piss someone off
Inf. to make someone angry. (Crude. Potentially offensive, even though it is widely used. Use with discretion.) She really pissed me off! That's enough to piss off anybody.
go away Piss off, Chris, and stop flooding my e-mail with garbage!
piss you off(rude)
to make you angry It really pissed me off that they didn't help me out when I needed it. I think everyone is pissed off about the parking problem.
1. Make very angry, as in That letter pissed me off, or She was pissed off because no one had called her. [ Vulgar slang; 1940s]
2. Go away, as in Piss off and stop bothering me. [ Vulgar slang; mid-1900s]
v. Vulgar Slang
1. To make someone angry.
2. To go away. Often used as an angry command.
piss offand PO
in. to depart; to go away. (Objectionable to many people.) Piss off, you jerk! Get out!