mac's hypothesis - Mac's hypothesis is when a man thinks he can tell if he's st

Mac's hypothesis is when a man thinks he can tell if he's straight or gay by watching gay porn and seeing if he gets a boner.

I watched gay porn and got a boner. I'm not straight. I'm a faggot.

My cousin watched gay porn and didn't get a boner. He says he's still straight, but he's lying.

I watched gay porn, got a boner, and now I'm stuck with a gay problem.