To squat over a girl, whether she is awake or not, and dunk you cock into her pum making as little effort as possible.

I can't wait to get on holiday for some pum dunking!

phwoar...I would love to pum dunk that!

Roland, with a grimace on his face, squated and dunked, then proclaimed "I am a pum dunker!"

by Gearsy July 4, 2008
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