When you're fuckin' a chick in the butt from behind and she grabs your sack-skin and uses it to rub her junk and get herself off.
by It's me, Ryan Softer January 10, 2010
The sexual maneuver whereby, whilst penetrating a female anus from a rear-entry position ("doggystyle"), the female utilizes the slack skin of the male's scrotum to stimulate the vulva and clitoris in an act of manual masturbation.
I was stuffin' my girl's dumper like a thanksgiving turkey when all the sudden she grabbed my coinpurse and gave herself a panhandle flapjack.
by The panhandle flapjacker January 03, 2010