Someone who you have no emotional attatchment to, who is only used for sexual encounters. A used person.
After the couple broke up, she quickly became his booty call.
In Biking terms simply, DIRT JUMP, to jump from one mound of dirt to another,usually involing alot of crashing.usually preferred by people who dont want to spend money on a full suspenion bike.djing is performed on a HT(hardtail) usually.
Skater: gay mountain biker get out of the skatepark and go hit some dj's.