pre-calculus 

A course on outdated mathematics that is not necessary when a higher level of math has been reached. Its main purpose is to amplify the beauty of Calculus, where everything is so much easier thanks to the derivative.

Pre-Calculus Student: Hey, can you help me with my pre-calculus homework?
Me: No, I'm a mathematician.

pre-calculus by Urban Dictionary August 16, 2012

Pre-funk 

Pre-Funk: (noun): an informal social gathering that takes place prior to the official ceremony, or social gathering, usually involving intoxicating activities and generally resulting in pre-function inebriation.

After pre-funkin at the pad with my peeps, we poured one to the curb for our fallen homies and headed to the party.

Pre-funk by Izer October 21, 2003

pre-apology 

the act of apologizing before you do something stupid

Frank knew he would get hammered at the ballgame, so he issued a pre-apology to the crew before the tailgate.

pre-apology by Merfzero August 30, 2007

pre-ancee 

A person who intends to get engaged in the future. A person is a pre-ancee if he or she has discussed getting married with their partner and they both agree that it will happen someday - but there has not been an official proposal yet.

"My girlfriend wants me to propose, and I will probably do it sometime in the next couple months, so I guess that makes her my pre-ancee."

pre-ancee by Paul NYC January 22, 2008

Pre-School facial 

When a girl sucks a mans penis and right before he reaches climax, he pulls out and tries to spell her name on her face.

Guy: That was great babe
Girle: i know but who's Don
Guy: my pre-school facial wasnt enough for donna.

Pre-School facial by E-Roach012001 February 26, 2008

Pre-Vo

Recording something on VHS, which is the antiquated technology that historians tell us preceeded TiVo (as in: Pre-TiVo)

My DVR is broken, so I'll have to get the VCR out of the attic and Pre-Vo the game so I don't miss anything.

Pre-Vo by MattyRhino February 19, 2009

Pre-fume 

When a women wears so much perfume you can smell it long before the she gets anywhere near you.

"That girl had on so much pre-fume you could smell her from across the street."

Pre-fume by I Am Warthog August 10, 2009