pre jack 

the slang term for premature ejaculation. also means to finish something rather quickly.

girl 1: i heard you had sex with your boyfriend for the first time last night.
girl 2: ya i did
girl 1: well? how was it?
girl 2:... he has pre jack

pre jack by dreadlockmamba January 13, 2011

Pre Jack 

To grab, buy, or do something before it is necessary to do it in order to prevent having to do it in the future — just in case it would be necessary to grab, buy, or do it later.

Imma pre jack that PS5 a month before Christmas, in case they sell out at that time.

Pre Jack by Prejack February 2, 2024

pre-jack 

To jack pre a sexual encounter as to prolong erection and performance.

Fap, fap, fap - I'm getting sex tonight.

pre-jack by Anonymous September 21, 2003

Pre-Jack 

Clear substance which precludes sex. Often causing squigy-ness in one's shorts, leading to your hammer sticking to your gitch.

ex.1
Guy: You don't have to spit baby!, just use the pre-jack!

Girl: yeah!

ex.2
Girl: Shit, did you cum already!!?!?!

Guy: Naa, Girl, it's just a lil pre-jack... fap.

Pre-Jack by Bejnay March 10, 2009

pre-jacking 

Jacking off prior to the actual desired ejaculation time - the goal being to cut down the time required when actually finishing the job.

He didn't think she was actually going to do the trick, so he started pre-jacking while she was in the bathroom.

pre-jacking by bestnarcolepsyever March 15, 2009

pre-Jacksonite

a pop star that was popular before the rise of Michael Jackson in the music world.

Can you identify any pre-Jacksonite?

pre-Jacksonite by uttam maharjan April 10, 2010

prejack

shortened term for pre-ejaculate fluid, the filmy substance that contains sperm, ova, etc. that leaks out the penis or vagina before the orgasm during sex.

"I dunno how my bitch got pregnant! I pulled out and shot my load on her face. It must have been the prejack!"

prejack by Lazarus Ciccone May 4, 2004