The story
From piss off, pee being the first letter of (and a euphemism for) piss.
Etymology from Wiktionary, CC BY-SA 4.0.
Today it means: Synonym of piss off (all senses) Full definition →
From piss off, pee being the first letter of (and a euphemism for) piss.
Etymology from Wiktionary, CC BY-SA 4.0.