Top Definition
When you are fucking a girl for the first time anally, you pull out too fast and the girl begins to shit uncontrollably.
Person 1: Dude OMG I heard you got with (girl's name) last night ..
Person 2: Yeah I'd rather not talk about it, it was a bad case of The Duff.
作者 The Duff Veteran 2010年11月08日

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