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2.
Used to define someone acting like a retard
Hey John was making love to a duck, yeah hes sucj a monkey boner
by Nick Kos Alex Barnett December 17, 2004
 
1.
monkeyboner is the kind of boner you get thats curved and shaped like a bannana
yo get dat monkeyboner out of mah pussy its to curved and hurts like a motherfucker
by jesusfuckersihatepussycauseimg January 05, 2010