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(Noun) When you're motorboating your girl downstairs, so her flaps are all flappin everywhere, and she's about to climax so you flip her over and then rail her doggystyle to finish up the job.
Frat guy 1: "Bro did you hook up with that chick last night or what?"

Frat guy 2: "Dude... I pulled a flip the flap and she was orgasming for like ten minutes."
by ASUdude5 September 13, 2010
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