When your doing a girl in the ass and you take your dick out dip it in a pudding pop and make her suck your dick.
I had some pudding so I gave my lady a dirty cosby.
by Scott Vista December 7, 2007
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When your fucking a girl in the ass while at your kitchen table and eating delicious beef wellington.
Last night my girlfriend made me delicious beef wellington so i figured i would take advantage of the situation and performed the dirty cosby.
by Dirty Cosby October 17, 2007
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It is when after having a roofie slipped to you, the person performing the cosby shoves rocks into your vagina and then pisses on you. after then, he shits his pants, grabbing a hand full of shit and smearing feces onto your face
That hoe got a dirty bill cosby cause shes a dum cunt
by MikeTheNigger February 25, 2017
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