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1.
An orgasm so good, it leaves your balls drained of semen,
That last orgasm was a ball drainer.
by 7999 May 08, 2010
 
2.
a woman who wants to have sex and/or gives head so much that she keeps her guy (or guys) in a constant state of being drained of cum
Angelina Jolie gave me three blowjobs today and then we fucked after that! She is such a ball drainer!
by RyTech CEO July 29, 2009