skid
verb, to have casual sex, to fuck (may be used with preposition on, as "skid on") (usually has derogatory connotation; not the way you'd refer to sex with someone you cared about) noun, a person inclined to casual sex, a slut (male or female) (someone who is really successful may be called a skidmaster)
Go away, man, I'm skidding in here! So, did you skid on that Sarah bitch the other night? That Kassie is such a wild skid!
By FarmBoy