The submarine game 

The player lays on their back in the bathtub and attempts to make only the tip of their dick peek out of the water like the periscope of a submarine.

Mai: You sure took your time. Were you thinking about me or something?...

Sakuta: Actually, I was just engrossed in playing the submarine game

The submarine game by karabu_ February 20, 2019

Bat Submarine 

When someone makes a comment and someone else repeats it soon after, claiming it as their own. Often, but not always, trying to one up the original idea.

Emmet - We could build a submarine!
*short delay*
Batman - We could build a Bat submarine

Bat Submarine by Spankie, EarlyDays January 27, 2015

submarine shot 

Similar to a "floater shot" aka "floater", but at the bottom of the cocktail.

Tamara: My husband was lit last night, I apologize for him at the wedding, he was plowed and loud.

Brie: I had a blast with Adam - classic Adam. He was ordering everyone bushwhackers with floaters, though ordering his bushwhackers with a submarine shot as well as a floater!

submarine shot by the comand'r November 11, 2021

Submariner 

From the depths of the Abyss we rise, silent and unseen. We live our lives in silence and darkness, bringing death to those that oppose the American Way. The Army may march, the Air Force will soar, and the Marines will crawl, but a Submariner is a force of nature that is unseen and unheard until it is too late. From beneith the waves we bring death from above and below. We rip the stars from the heavens to rain destruction around the world. Hidden by wave and shadow, escorted by the Leviathan, Posiedon himself bows to us. Fear us, for we are the unknown, the unknowable. We are Death.

Seaman Shmuckatelli, qualified Submarines.
*Ding Ding, Ding Ding*
*AWOOOOOOGA! AWOOOOOOGA!*
(Later, on shore)
Women: Oh my god, he's got dolphins! I want him so bad, he's a submariner!

Submariner by Fleming September 19, 2006

pussy submarine 

When the forearm of a person is shoved elbow deep into a vagina

I sent my pussy submarine into the unexplored depths of this chick last night.

pussy submarine by Loaded questions January 3, 2014

Blue Submarine No. 6 

Blue Submarine No.6 is a pretty badass anime about the once famous and well respected scientist Zorndyke who has bred a new genre of living being, one that thrives on the oceans and lives to destroy humans. Zorndyke believes it is time that the humans were relieved of their rule of the earth. It is up to Blue Submarine No. 6 and the rest of the Blue fleet to put an end to Zorndyke's madness and creations.

Blue Submarine No. 6 used to come on Toonami on Cartoon Network back in the day.

Blue Submarine No. 6 by ♫ Highway to Hell ♫ July 10, 2010

Brown Submarine 

A feacal deposit left in the toilet bowl following an unsuccessful flush. Due to the density of human excreta these visual obscenities usually reside at periscope depth. Simple post-flush checks by the degenerates that leave them behind would render the Brown Submarine a thing of the past.

Bridge Officer: Captain! Bearing 030 off the starboard bow. Brown Submarine!

Captain: Set Depth Charges to Zero...Fire 1...Fire 2...

Bridge Officer: ....Enemy flushed sir.

Captain: Good work sailor, the Rear Admiral will be pleased.

Brown Submarine by BrianTrousers February 16, 2009