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1.
To have a cramp begin in either your legs or stomach, eventually the pain spreads to your balls. it feels like being hit in the balls with a sledgehammer.
dammit, dude, i had a leg cramp and it started to spread, and now i have ball cramps!

*passes out from pain*
by PunkRockerJack June 08, 2009
 
2.
Periodic soreness or tightening of the male genitalia. Often coincides with a woman's menstrual cycle due to a lack of sexual contact.
Hey girl not tonight, I still have MAJOR ball cramps.
by anfernee April 20, 2007