When a female dances aggresively on a male, as if attempting to cause testicular damage
"Dude i totally got slamballed by this drunk chick at Phi Kappa Tau last night, my nuts are killing me"
by mtp5081 March 21, 2010
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The meatballs provided by most school cafeterias or any other eatery that is usually cheap, dirty, and/or served by filthy individuals. Slamballs typically are made up of one key ingredient, grade Z ground beef and are somehow satisfyingly tasty even though the consequences of the slamball are usually not worth it. Should usually be passed on but often is not.
Sally: "Let's go make out after 6th period lunch!?!?"

Me: "Normally I would babe, but they are serving slamball hoagies today. I know once I'm done eating I'll need to drop a hammer in the bathroom. Can I get a raincheck on that?"
by SixBowls August 20, 2010
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The slamming of the male reproductive glands against the forehead of an unsuspecting or sleeping victim.
Collin passed out after drinking only three Zima's, so Cody woke him up with a slamball.
by pen15 February 15, 2005
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The name of a really crappy "sport" that imitates basketball but bastardizes it by adding props such as trampolines and is played by a bunch of unathletic hispanics.
Pedro and Juwon won the slamball game 2-1.
by TheAznSensation April 15, 2004
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The time period immediately following sorority rush, where new and existing sorority members haven't had a dick in their hand for weeks. And need it. Like they need it bad.
Fratstar A: "Man, I haven't seen a chick in weeks. My dick's getting chapped.
Fratstar B: "Total cockcity. But sorority rush ends today. You know what that means!"
Fratstars together: "SLAMBALL SEASON!!!"
by juice45 August 13, 2009
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