When you are chilling in class and get a boner, particularly for no reason. Usually happens in the same classroom every day; particularly common throughout Jr. High and High School
Spencer: WTF, i always get this random boner in Mrs. Cone's room!
Garrett: Yeah, i get one in that class, too. Carver said that it's called a classroom boner.
A game played where two men each defend a goal and hit a ping pong ball with their erect penises at the other players goal. To score a player must get the ping pong ball in the other players goals. Hands are not allowed, the only part of a player's body that is allowed to touch the ping pong ball is the erect penis. The player with the highest score after erect penises shrink wins.
Chaz and Brock got really drunk at the frat party and decided to play boner pong.
relax, chill, stop being so overly excited, there's no reason for alarm, it's all going to turn out okay. Also, don't count your chickens, and don't assume that sex is imminent or that something else very good is about to happen.
Dude, fan your boner. She was only dancing with you to make her boyfriend jealous.
Okay, okay. Fan your boner. There's gotta be somebody around here who can give us directions.