piss off
phrasal verb
piss off
(especially British English, offensive, slang) (usually used in orders) to go away
Why don't you just piss off and leave me alone?
piss somebody ↔ off
(offensive, slang) to make somebody annoyed or bored
Her attitude really pisses me off.
e.g.
If I hadn't killed an officer who pissed me off... they would've given me the order of the golden kite, and I'd be living comfortably off my pension. 気に入らない上官を半殺しにしなきゃ 金鵄勲章もらって今頃はぬくぬく年金暮らしだ (/yupeco/『ゴールデンカムイ』1話)