Prebust 

When you jack off for a really long time, and some of the cum that's will eventually burst out just sorta sits on the tip of your dick. Prebust is normally clear, not white.

Jack: Dude, I have sooooooo much prebust on my tip!

John: Well you wouldn't if you weren't jacking off for so long!

Jack: But it's the Animal Channel. It's the only porn I'm allowed to watch!

Prebust by Rami Laham February 26, 2008

Prebut 

To argue against someone's position on an issue before they have even announced their position on an issue.

The Republicans issued a prebut in anticipation of President Obama's press conference on budget cuts.

Prebut by IaCthulhu May 2, 2011

Prebuttal 

The act of providing a rebuttal before the opponent has actually said anything.

"I knew he was going to say that so I gave my prebuttal right away."

Prebuttal by Alexandradagreat February 15, 2012

prebutt 

1. The space between the small of the back and the beginning of the buttocks division . Some ladies show that part with their cut blouses, thereby suffering mosquito bites.

Me: "She has a tattoo on her prebutt"
Other Dude: "you dummy, that's the small of her back"
Me: "I disagree.. it's definitely her prebutt."

prebutt by The Big E May 10, 2005

prebusiness

Engineering major in a college or university, due to the high number of students switching to business major after failing out of engineering.

I originally majored in prebusiness but the math was too hard, so I switched to communications.

prebusiness by Jimmy the Sicilian February 4, 2013

prebush

The area of body hair on mans torso which protrudes from the underwear and based on the style and cut of underwear can include an area of up to several square inches. In all cases the prebush is defined by the underwear cut and is usually less dense and often an area subject to manscaping . A woman can have a prebush too but usually frowned upon in most western culture except lesbians and skank culture.

D'mtri was horrified to find out that the swimsuit which Andrew Christian chose for him to model in their upcoming catalog was a low low rise which exposed all of his prebush which he failed manscape that morning.

prebush by Jerry Paratestees April 1, 2021

Premustard

The watery substance that comes out of the mustard container if you don't shake hard enough before squirting.

Gross, there is premustard all over my buns. Didn't you shake it hard enough?

Premustard by Debica July 31, 2010