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15.
A sexual position in which the male suspends himself under the female while she is on all four with her posterior facing the sky.
Dude, I submarined Jen for two minutes then she collapsed.
by Jim December 08, 2003
 
16.
When a couple, Man and Woman are sharing a hot tub together. Unknown to the woman, the man is jerking off under the bubbly jets so she cannot see. Just before the man cums, he sticks just the tip above the water and screams "FIRE TORPEDOES!" and blasts on her face, before submerging again.
Oh Fred your Submarine ALWAYS catches me by surprise
by CuddlyCuddleFish March 08, 2011
 
17.
A motorboat that comes unexpectedly.
"Ya she had some amazing tits. I definitely submarined them."
by SarahRichmond October 13, 2009
 
18.
n. A derivative of the "motorboat" in which one places one's lips and cheeks against the vagina, then shakes the head from side to side, keeping the lips slack, so as to produce a "bu-bb-br-br-bb-bur-bu-ber" sound.

(See also: motorboat)
She said she'd seen and done it all, and nothing I did could surprise her -- but then I put on my best Sean Connery and gave her the submarine.
by MSOEnunciate September 20, 2009
 
19.
(verb) To take steps to make sure someone doesn't get hired at your place of employment.
Yo Gina, I saw your ex in here last week on an interview, but don't worry - I talked to management and submarined him.
by Dan Webster May 04, 2004
 
20.
A tampon currently trolling in the puss.
I wanted to fuck the bitch, but she was sporting a submarine.
by microsoft_bastard March 24, 2003
 
21.
to put it simply a submerged blowjob and/or handjob. likely to take place in a jacuzzi or hot tub.
I heard she gave him a submarine last night, WOW
by GLOBAL INC. July 14, 2009