The phrase twists rest in peace, the funeral line popularised in wrestling by The Undertaker as a cold pre-match threat, replacing peace with piss to turn respect into insult. Online it spread through gaming and meme culture alongside press F to pay respects jokes, where players mock a death instead of mourning it. It now appears in edits after a knockout, a fatality, or an embarrassing elimination, and remains popular because the disrespect is instant, quotable, and understood without any setup or explanation needed.