A bulge in the pants that looks like a boner. It is usually caused by the pants' material bunching up. This is similar to a phoner but it is just air inside the pants instead of a phone. This is also the same thing as a foner.
Guy 1: "Why is everybody giving me weird looks today?"
Guy 2: "Probably because of what's happening down there."
Guy 1: "Oh, that's just an air boner."
When a person (usually drunk or stupid) gets extremely excited about one specific idea, and will do whatever they can to make sure that whatever they are talking about happens.
Dude, I can't believe David bought everyone tickets to the baseball game.
Yeah, I didn't really want to go, but he got an Ahmad Boner and got the tickets for us anyways.