1) wear sweat pants or silky shorts for obvious evidence
2) only use your mind (i.e. no pictures, sounds, etc.)
3) 2 or more players necessary
Winner is awarded upon announcement of full blown hard-on and proven by bulge in sweats or shorts
First, in the last 5 minuts of class, see if you can get a full stiff, and see if you can loose it before the bell rings for your next class. If not, you will walk through the halls with a boner, and nobody wants that!
its more like a race against time or a demonstration of ur ladyfriend knowing what u like.
"hey kate, this movie sucks, wanna play the boner game?" "sure! your mom just told me some of ur secret fetishes so im guarenteed to win!"