Taking a beer can, shaking it up and exploding it by the forceful slamming of said can against one's forehead. The real art of this game involves careful placement of beer can on forehead, force of impact, and splatter distance. Masters of this game value winning not only at detonating the can, but how far each half of the split can travels, number of attempts needed to detonate, but also making sure audience members enjoy the sport.
Did you see that game of detonator!? Dude, QuickStep needed only 2 tries to explode that can. He must have a forehead made of steel.
by Capitan Senor Boom July 28, 2010
A drinking game that doesn't require much drinking. Participants slam a shaken-up beer, sideways, into their forehead with a goal of detonating. This, of course, occurs after a crazy pump-up yell of "DETONATOR!". If a detonation is not achieved, the beer is passed, spraying or not, to the next person, who then attempts to detonate. One who detonates is fucking HARDCORE.
by Dave Barcowski May 18, 2008