Top Definition
When two men thrust their sacs at each others while kissing (preferably tongue) until someone gives up.

Rules:
1) Weiners must be strapped to the stomach with an elastic band.
2) Hands behind the back at all times (Allowed to finger oneself mid-game).
3) Lips must be locked the entire game.
4) No Footsy's. Thats for fags.
5) NO GIRLS. Unless its a hermaphrodite with a sac.
6) Loser must tickle the winners prostate until they cum

Me: Yo BJ I heard you just lost to your dad in Sac War.
BJ: Yea, I have internal bleeding in my nuts and my finger smells like poop.
by The Duke33 April 15, 2009

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