Top Definition
The act of making love or having sex through a zipper. This can, but does not neccesarily include, trousers that have buttons instead of a zipper.
1. Wow, Gary was clumdunkling with that girl for hours!!!!!!!

2. Mark is such a clumdunkler!!!!

3. I dont have time to take off my pants...... Is it cool if we just clumdunkle???
by Rock-dawg June 07, 2011

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