Balldraining
When an individual (hopefully a male) has so many orgasms that his prostate gland cannot produce enough man milk to feed the demand. Some common places to encounter a gentlemen who has had his balls drained are at orgies, weddings, funerals, family get togethers or the red light district.
Dude, Elaine sucked my dick for eight hours straight. She is a balldraining slut.