Top Definition
The act of fucking someone up the ass while they fuck you up the ass at the same time, generally the reciever of the initial penetration doesnt enjoy it
The governments moneypenis screws every american every day whilst we stick our cocks in their ass, because they like it that way. also see Moneypenis (moneypenis and the symbiotic buttfuck, though similar cannot be used interchangeably)
by WillofThePersin July 08, 2012
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