waterproof 

When someone is waterproof, it means solid. It has to do with leaking a secret or snitching. One who is waterproof will not leak any information to someone else.

1.Come on, tell me. You know I am waterproof.
2. "Why did you tell that kid?" "Don't worry he's waterproof"

waterproof by Tyrone Bigums May 20, 2008

waterproof 

When a member of the female species has all her bodily cavities filled with penises, fingers and/or dildos she is said to be waterproof.

Mischa Barton had Ron Jeremys cock in her pussy, Stephen St Croix snake crawling in her rectum and John Holmes dick in her mouth, and was thus waterproof when Rocco Sinfredi sprayed her with Pimp-juice.

waterproof by The Cockroach December 1, 2007

Waterproof 

Drippin’ in ice. Laced AF in top flight jerwery preferably from Eliantte. If Debo takes you chain(s), you are no longer waterproof.

The owners of LAIR been waterproof since they started!

Waterproof by HoodieWithTheBoogie January 25, 2019

Waterproof Sex 

When two people are having sexual intercourse in the same latex fat man suit while submerged in a pool, lake, ocean or any type of liquid, therefore ensuring satisfaction and staying dry.

Tony "So what did you do last night with Emily?"

Anthony "We had waterproof sex, it was like doing it and defying gravity"

Waterproof Sex by Russian. May 13, 2010

waterproof mascara 

This shit sure as hell works because it won't come off until you wake up the next morning and there's a bunch of black flakes all over your face and in your eyes. If you really want to get it off burn your eyes with some hot water and melt it off.

"Hey you've really had this waterproof mascara for a while now!"
"Haha that's because I'm wearing the same coat of mascara from last year!"

waterproof mascara by ;)))))))))))))))))))$ August 10, 2015

waterproof plastic 

some sort of material that is non-water absorbent and reflects water on both sides

waterproof plastic is useful when having sex.

waterproof plastic by thewaterproofcompany August 22, 2011

Waterproof Towel 

Used to state how useless something is.

Very cleverly used in sarcastic sentences.

Joey: Dude, I got more soap!
Ben: It looks pretty filthy...
Joey: So...?
Ben: So its about as useful as a waterproof towel

Waterproof Towel by JoeyMo December 9, 2008