An activity when you hide yourself within the surroundings of a golf course, usually within the wooded areas. You then keep a distance of at least 100ft from you and the tee box and wait for a golfer to make his swing. Once he in mid swing, and making sure no one sees you, you blow an airhorn very loudly, in order to throw him off. It is better to video tape this so you can watch their reactions over and over. If spotted by the golfers, run.
Will: Hey Jordan, you wanna go airhorning?
Jordan: Yeah sure, let me get my camo and then we'll go to walmart to buy a jumbo airhorn.
Will: Alright cool, this is gonna be fun, I can't wait to piss some people off!