To stick one's entire cranium into the vaginal orifice of a female (or I guess a hermaphrodite.)
Did you see that guy go deep sea diving on that big-hips chick? I DID LOLOLOLOL.
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A gloriously pointless and awesomely gross sexual move (see houdini) in which the man, upon ejaculating onto the back of his partner, takes a straw and slurps it all up. Gnarly to say the least. No reports of anyone actually doing it thus far.
"When I finished with Faqwanda I went deep sea shrimping."
"Get out of my sight."
by Fillmore Slim June 25, 2004
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Someone who has such a low intelligence that it can only be compared with the sea floor
Damn Sarah is a fucking idiot
No man, shes a deep-sea dumbass
by enterthehurrikane December 4, 2008
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First off this is the most sick thing ever. A man shoves an octopus (live mind you) into his female partners vagina. He then proceeds to have intercourse while the live octopus is still there.
Yesterday, I went deep sea fishing.
by Anonymous.......... June 8, 2005
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During a blowjob, the male partner shoves his dick as far as possible down the womans throat until she begins to exasperatedly gag, then urinates with a powerful jet stream. The woman then proceeds to gargle it into a fine mixture with her saliva, then spits it out into her hands, and lathers her body with it.
1. I gave Helen a deep sea diver...man, was she pissed!
by nick staton February 5, 2008
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Refers to the idea of holding one's breath while under water. Usually takes place when a woman goes down on a male (or even if a male goes down on male). While she is diving, the receiver simply pinches the nose of the one doing the job. This usually leads to lack of oxygen, purple faces, and good laughs with your bouddies.
While performing oral sex on his boyfriend, rod was tricked into a deep sea dive.

Rashad was charged with sexual assault after his girlfriend told police he made her do a deep sea dive against her will.
by super manhattan guy March 11, 2005
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When a man shoves his entire tongue into a woman's vaginal cavity while underwater. This sexual act is often, but not always, accompanied by shoving ones fingers into the anus and biting the clit with ones teeth (although, the biting is very strenuous).
Dude, Karen and I went Deep-Sea Munching last night and it was IMMACULATE!
by MunchMeASAP January 16, 2011
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