When you have sexual intercorse with a minor and she squirts all over your treasure trail right down to your ass hole
by balius September 14, 2010

While performing anal sex, you pull your dick out and drop several "just-add-water" foam expanding dinosaur capsules in her asshole. Then reinsert, pee in her butt and wait. Some of the dinosaurs will flow out when you're done. The others will stay in there for a while and give your wife/girlfriend a nice surprise the next time she TRIES to drop a deuce.
My girlfriend gave me anal for my birthday.
I gave her a jurassic waterslide for being a bitch all year.
I gave her a jurassic waterslide for being a bitch all year.
by MagicRat April 19, 2018

by Gigs_1 September 30, 2022

When you are having sex and the penis slips out of the vagina while on the "backstroke" and you thrust forward and the penis forcefully enters the anus.
by theunderwaterhamburgler September 5, 2022

by DavidDeGooner September 7, 2025

Ejaculating in a woman with her ass and the air and sliding the cum down between her cheeks with your dick.
by Wikud May 31, 2021

The act of filling a waterslide with piss and cum and diving head first into it. It is fully enjoyed when you do it with multiple people and have sex in it afterwards.
"Did you hear about Jame's Washington Waterslide at his house last Friday? everyone contributed to fill it up!"
"Wow talk about a group effort!"
"I wish I went but I was too busy enjoying my girlfriend's Mississippi Birdbath."
"Wow talk about a group effort!"
"I wish I went but I was too busy enjoying my girlfriend's Mississippi Birdbath."
by pimpster69420 September 16, 2023
