A short form for “back off, bitch”, with the example of when your girl asks how many pieces of pie you were going to eat when having a hammered dinner, and you respond “How ‘bout I’ll eat Shut the Fuck Up number of Pieces of Pie?”.
When are you getting home tonight? I’ll be home at S FUPP o’clock , bitch!
by Hoobamaba August 18, 2019
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