Being online on a web messenger service but appearing as if you were offline.
Ash: "Are you submarining again?"

Cynthia: "Yes, I don't want to be bothered by all of my contacts, so I answer only those I want to talk to."
by cyncyncynthia February 3, 2008
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The act of ripping a bongload then chugging a beer before exhaling the smoke.
Dude did you see that guy at the party do a submarine and pass out on the floor? Classic.
by Bart Mancuso February 9, 2010
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The act of motor-boating the vaginal lips during oral sex.
Her snatch tasted so good i submarined that shit!
I LOVE Submarining!
by Nilentropy July 18, 2010
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One of the only two types of ships in the world. The other being "targets"
by Major Davis September 13, 2003
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an underwater form of transporation that is long, hard, and full of sea men.
joe: i think there is burieg treasure in this lake!
larry: ok, i'll get the submarine so we can go underwater.
by the submarine man December 10, 2009
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Submarine is the fact of leaving a piece of shit in the bubble bath of another person

which will arise after a certain time just like a submarine.
And while waiting for the submarine to come up you absolutely must listen to the Beatle song about the submarine.
Damn Dude i gave your sister a nice submarine yesterday evening,she was so surpised.
by long wong yi March 21, 2015
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