While performing anal sex, you pull your dick out and drop several "just-add-water" foam expanding dinosaurs into her open asshole. Then reinsert, pee in her butt and wait. Pull out quickly and a few of the dinosaurs will flow out like on a waterslide. The others will stay in there for a while eventually landing in another water pool... the toilet.
She gives me ass once a year on my birthday.
So i gave her a jurassic waterslide for being a bitch all year.
by MagicRat October 25, 2017
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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.
by MagicRat October 25, 2017
Get the Jurassic waterslide mug.