Titan submarine 

A submarine that is a “submersible” in the very same sense that Amy Schumer is a “comedian”

“Hey did you hear the news about the Titan Submarine? It sunk. Guess it wasn’t all that good at its supposed job, and got progressively worse.”

Titan submarine by TK2000 October 28, 2023

Russian Submarine 

Anal sex done in a full bath tub with the recipient face down. The recipient must be using a snorkel in order to breath (for now). Just before ejaculating plug the snorkel hole providing asphyxiation and a tightening anus whilst feeling confined. Try it... its a slam dunk every time!

John: what are doing hun?
Jane: Just running a bath sweetie.
John: Well grab your snorkel because your getting a Russian submarine tonight!!
Jane Oh John I can't wait... I love you!

Russian Submarine by Ramdin26 August 10, 2009

about as useful as a screen-door on a submarine 

Utterly useless
A waste of oxygen
Completely worthless
A waste of space
Devoid of any purposeful function on this earth
Something about as useful as a screen door on a submarine

"This screen door on our submarine is about as useful as a screen-door on a submarine."

about as useful as a screen-door on a submarine by shakneekwa October 14, 2005

protein submarine 

Hulk Hogan's term for a formidable fecal deployment.

I need to go sink a protein submarine.

protein submarine by kampy December 28, 2007

dirty submarine 

Male who has performed anal sex

It is not the motion of the ocean. But its hard to get to Spain in a rowboat. if row boat is the size of your penis then yacht is for a bigger penis, what if you do anal? You're a dirty submarine.

dirty submarine by Dr. Krieger June 5, 2013

Yellow Submarine 

When someone replaces the filling of a twinkie with their semen. Thus making a yellow submarine filled with semen.

Hey man, I had this twinkie given to me the other day but I'm pretty sure it was a yellow submarine

Yellow Submarine by Jog0 May 11, 2021

Mexican Submarine 

To leave a stinker (huge shit) in someone else's toilet and leave it to... Ferment.

Sammy came round saturday an left a Huge Mexican Submarine in my fuckin toilet the bastard.

Mexican Submarine by Mexican Navy November 28, 2009