Blastoise 

The sexual act in where a man deprives himself of any sort of sexual activity for 3 months for the sole purpose of saving up sperm, then, with he's with his main biddie, he busts it all off on her face like a hydro pump!

"Yo that bitch Susmita? Yeah I gave her a fucking Blastoise, blat blat blat!"

Blastoise by Bloood October 30, 2010

Blastoise 

Blastoise, a pre- evolution of the pokemon Wartortle. This pokemon looks super badass and cool and its Hydro Pump will knock your fucking teeth out.

Blastoise just learned Hydro Pump!

Gamer : Everyone back the fuck up our I will Hydro Pump the shit out of your pokemon!

Blastoise by Legs You Legend October 29, 2009

Blastoise 

when a female is gettin hydro pumped in the vagina by a males cock, the female orgasms and a huge blast of clear liquid is shot out of her moist opening at a high pressure.

Adam-"hey bro, get lucky the other night?"
Tom-"yeah man, pumped her so hard, she squirted soooo hard like a blastoise using its hydro pump!!!

Blastoise by ash ketchum, pokemon master!!! March 4, 2010

Blastoise 

A personality of someone during the act of sexual intercorse that likes to ejaculate all over the place during sex. A blastoise is also a water pokemon so water and semen are closley related. Therefore when Blastoise uses water cannon, the males dick uses semen cannon.

Me- Are you a blastoise Johnny?
Johnny- No i don't even have a dick you cunt.
Cortney- I am.

Blastoise by obama's dick hole black & tiny December 2, 2010

Blastoise 

(Binomial nomenclature: Blastiosus-poopus)When a person has an urgent need to excrete fecies causing the anus to expand 10 folds in a force greater than the heat of the sun...(most cases its fatal--mad blood loss)

Mary took a blastoise last night at 10 and at 2 the coroner proclaimed her dead by largus-anustus.

Jimmy , running in great panic as he held his posterior screaming BLASTOISE!!!!

Blastoise by Merch-the-miggity August 3, 2006

Blastoise 

To forget proper etiquette when overcome with interest in or admiration for a new technology. Understood to be at best a faux pas, at worst a sin. Of Victorian origin.

To blastoise is to blaspheme, gentlemen, against good Mother Nature, and against your humanity.

Blastoise by Dhakian April 8, 2016

Blastoise 

The fat turtle of the Pokemon universe

Bob: Did you see his Blastoise?

Helen: Yeah it girthy

Blastoise by Russian Field Worker May 11, 2018