piss off phrasal verb spoken not polite (see also piss)

1. piss somebody ↔ off to annoy someone very much:
The way she treats me really pisses me off.

2. British English to go away – used especially to tell someone to go away:
Now piss off and leave me alone!
He pissed off before we got there.

3. British English used to say no or to refuse to do something

[TahlilGaran] Dictionary of Contemporary English ▲

piss off
piss (you) off
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.

go away.
Piss off, Chris, and stop flooding my e-mail with garbage!

[TahlilGaran] English Idioms Dictionary ▲

piss off
to bother or annoy someone, to make someone angry
My supervisor pissed me off when he asked me to work late again last night.

[TahlilGaran] English Idioms Dictionary ▲

piss off
v., slang, vulgar, avoidable To bother; annoy; irritate.
You really piss me off when you talk like that. -

[TahlilGaran] English Idioms Dictionary ▲

piss someone off
to bother or annoy someone, to make someone angry
My supervisor pissed me off when he asked me to work late again last night.

[TahlilGaran] English Idioms Dictionary ▲