Definitions by Wilshire89
Kentucky Derby
In a college setting, when two couples compete in having sex in the same room. The bed must rock like you're riding a horse. The couple that finishes first raises an arm to signal that they have "finished."
"Hey man! Who won the Kentucky Derby last night?"
"It was close, but I beat my roommate by like 2 seconds!"
"It was close, but I beat my roommate by like 2 seconds!"
Kentucky Derby by Wilshire89 May 2, 2010