piss in (one's) soup(redirected from piss in someone's soup)
piss in (one's) soup
rude slang To upset, irritate, or disappoint one, especially to an extreme or excessive degree. Sorry to piss in your soup, but you won't get any credits for the class unless you attend every single lecture. A: "Watch out, the boss is in a foul mood today." B: "Wow, I wonder who pissed in his soup?"
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