Top definition
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!
by Rami Laham February 26, 2008
Get the mug
Get a Prebust mug for your papa Paul.
Apr 21 Word of the Day
I've been jabbed
by Francesco II March 20, 2021
Get the merch
Get the jabbed neck gaiter and mug.