Fish-Tank Wank

When a man gets sexually aroused and 'horny' so he masturbates and when he cums he lets his seaman fly into the fish tank, killing the fish, but resolving his sexual fustration.

I had a wank last night and didn't want a huge mess all over the carpet so I did it in the fish tank!

Shit, i appear to have killed my fish.

Fish-Tank Wank's are the best!

by Helen Back April 16, 2007

Pop A Fish Tank

To pop a fish tank is to basically to finger a girl in her vagina really hard.

"Yeah man! I just straight popped her fish tank!"

"Dude, you pop a fish tank. NO WAY!"

"Nice!"

*High Fives*

by Fish Tank Popper Its REAL June 4, 2010

Clean your fish tank

What you tell a girl to do when she isn't so fresh.

"Steven told his girlfriend, Sandy Fagina, your twat smells nasty and busted, you betta go clean your fish tank."

by Stefanie and Jared September 29, 2006

Cleaning out the fish-tank

A particularly large dose of man fat applied liberally to the inside of a woman's beef curtains. Ideally needs to be enough for a fair amount of drippage

Jon : Why didnt you answer your phone last night?

Ad : Mate! I was cleaning out the fish-tank

Jon : but i phoned back an hour later

Ad : Bow chicka wow wow

by ExcellCRW June 7, 2011

Fish Tank(ing)

When a female has a smelly pussy, and traps you under the bed sheets.. much like the common Dutch Oven.

The hilarity of my boyfriend's dutch oven was quickly dissolved when I instead spread my legs and the dreadful smell of pussy entraped him in a tank of my vaginal fishyness. Boom, fish tank(ing).

by Brittinator July 23, 2014

mississippi fish tank

When you take a piss in a girl's mouth and while she gargles you jerk off in her mouth.

Dude: Hey baby, I heard about this new thing called the "mississippi fish tank", wanna try it?

Babe: Sounds weird? What is it?

Dude: You trust me?

Babe: Mmmm...yeah?

Dude: Open wide then, close your eyes, and try not too swallow.

by shmurban shmactive April 25, 2009

The 55 Gallon Fish Tank

When you muff dive into a woman that is made of at least 55% body fat and come back out for air smelling like Nemo's abusive alcoholic uncle.

Hey Steve, you douchebag, after I took her out to a nice dinner at Popeye's we went back to her trailer where I gave her The 55 Gallon Fish Tank. Four showers later and I still can't wash her mush off my moustache. Overall, it was a great date with your sister. Asshole.

by Larry and Rex and Benny July 8, 2018