pre-frosh 

A student who is not yet enrolled in a certain college, but accepted and intending to matriculate.

Hey! Look at the little pre-frosh!

My pre-frosh are coming this weekend.

pre-frosh by automator April 11, 2004

pre-teen 

anyone between the ages of 10-12, maybe 13

usually rather stuck up, shops at limited 2 and listens to GC and yellocard, usher, beyonce, and such.

wicked annoying

That pre-teen is getting on my nerves

pre-teen by Sassymae February 17, 2005

Pre-Allo 

adj. prone to rants, fighting, outbursts, and otherwise negative social interactions

Calm down. There's no need to go Pre-Allo on me.

Pre-Allo by Anonymous December 4, 2004

pre-cum 

Clear lubricating fluid secreted from penis after arousal.

Precum oozed from his throbbing cock head.

pre-cum by Vega$ Bill November 28, 2002

Pre-reporting 

also Prereporting

The ability to report an event before it has occurred via live worldwide broadcast or through newsprint. Prereporting also involves contradictory evidence contained within the story that is being reported.

BBC on 9-11-01 engaged in pre-reporting with a newscast that World Trade Center 7 (a.k.a. the Salomon builing) had fallen while the building was still standing, and visible over the newscaster's shoulder.

Pre-reporting by skizex March 2, 2007

pre-pee 

Primarily for movie goers, the pre-pee is when one goes to the bathroom before getting the movie starts, in order to avoid having to go to the bathroom in the middle of a movie and miss a good part.

(while on premiere line)

A: I heard this movie is dumb long
B: Yeah, 3 hours or something
A: I'm gonna go pre-pee. Hold my spot?
B: Yeah, sure. I'm next though.

pre-pee by secretly June 6, 2007

Pre-Cheat 

The act of flirting with another person with the intent of hooking up with them after your current relationship is over.

You were so pre-cheating with Rufus last night on our date!!

Pre-Cheat by Precheater June 12, 2008