I dont think they are talking about the lame ass shotguns where u inhale the smoke and blow it in someone elses mouth...

They are talking about when you're smokin a blunt to turn it around backwards in your mouth, and blow, the other person gets a steady stream of smoke coming out hard, and the "inhalee" sucks the smoke in like a vaccum and it fucks your world up for real.

No, its not gay... me and my friends do it almost daily, and we do it at parties and everything, if anything, people think you're the man when u can hold in a really nasty shotgun without coughing.