Type of motorcycle riding, consisting of doing huge jumps. Originaly performed by guys who gave up on the supercross circuit, because they weren't fast enough to make money at it. Doing these jumps requires huge balls, and far less skill than being a competitive racer. While performing these jumps riders will do little tricks with thier bodies to impress the audience, who is usually made up of bandana-wearing Wall-Mart customers. Competitions are held with explosions, and fire to keep the attention of the simple minded audience...much like wrestling, but it is real. 909er's love this sport almost as much as meth!
"Dude, will your truck have that sick lift on it by next week, so we can take it to the FMX show? I hope Deegan still has spikes on his chest protector...I'm gunna wear all of my black clothes!"