Top Definition
When you are sitting at your computer for so long, the tightness from your pants and your undies make yourballs fall asleep. THis can also happen if your leg overlaps any of your balls.
JEB-"OMG my balls are numb!"

Loyde-"You are suffering from ballnap"
by Pugnap00 October 24, 2006
10 Words related to Ballnap

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