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!
by the comand'r November 11, 2021
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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.
by Loaded questions January 3, 2014
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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.
by BrianTrousers February 16, 2009
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"Watching the submarine races" is a euphamism for making out (and more) in a car. It's the kind of thing a cop would say to be funny when he knocks on the fogged-up window of your chevy parked in back of the safeway to ask what you're doing there at 1am, as if he doesn't know damn well.
Cop: Hey, what're you kids doing in there? Watching the submarine races?
People in car: Gak! Where are my pants?
by creaternity April 13, 2006
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A Trouser Submarine is a large penis which is used to destroy male anuses and male anuses only.
Oh go harder man, I want you to use your Trouser Submarine on me and throw your sea men overboard into my anus
by batthule June 24, 2011
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(noun) an alcoholic beverage concealed within a larger receptacle that prevents the rousing of suspicion when in public areas that prohibit the use of such substances.
Guy 1 "I'd love to see that movie tonight, but I really wanna drink."

Guy 2 "No problem. Just grab a large cup from the snack stand and make a Chinese Submarine."
by RD PS June 19, 2012
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The leftovers of a roast chicken are placed in the bed/pillow of a friend.
If Rob doesn't stop bitching out I'm going to chicken submarine him
by magbnl February 23, 2011
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