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1. opposite of skinny dippin, fat girls and guys swimming naked.
2. screwing a fat chick
1. Hey!look over there,those girls are going chunky dunkin in the pond!
2. Hey dude, you going chunky dunkin tonight?
by Viki B April 16, 2008
The act of an obese person swimming naked
Regular sized people go skinny dipping; Fat people go Chunky Dunkin'
by Cloverboi27 August 07, 2009