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1.
The process of when one male thrusts his penis in an up and down motion through another mans scrotum as the balls are wrapped around the penis.
Tom: Hey m8 wanna come round tonight?
Clarke: I dunno m8 will you make it worth my while?
Tom: Yeah m8 I'll give you dat dere ballfap.
by whatdafukbro May 01, 2010