gracefully dipping your nose into one's vagina
i went nose diving with spencer's mom last night
by spencer's dad September 11, 2005
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1. To rapidly and steadly down-grade one's own motivation and progress in anything relating to life. Eg. fucking up or losing in life.
2. The event in which an airborne object front-end(line-of-vision) first descends toward the earth.
3. Actively snorting cocaine on a regular daily basis. Snorting cocaine with addiction.
I don't nose-dive anymore.
or
That man has been nose-diving since he quit his job and ain't working.
or
His frisbee toss took a nose-dive into the mac and cheese dish at the barbeque.
by itsallgood May 8, 2005
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The act of pleasuring a female (usually in a penetrative manor) using the nose.

When a male/female uses their nose to stimulate the clitoris/prostate of another male/female.
"Ben's large nose was incredible for the occasional nose dive."

"My nose diving technique really gets the girls excited."

"I love it when my boyfriend nose dives, it makes me so aroused."
by BSAMH69 January 6, 2014
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1. Inhaling a joint or spliff with one of your nostrils and exhaling with your mouth.
2. That thing Charlie Sheen did in his tweet video when he went officially crazy in 2011.
Allie: Here hit this, but do a Nose Dive.
Cassie: Holy shit, that is so crazy.
Allie: That was a huge hit too.
Cassie: Yeah I didn't realize how big it was. And now I'm super high.

"Did you see Charlie Sheen's nose dive in that video?"
by Cassomophone July 13, 2011
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When you ruined your rep and "Dived" into the deep end. This can come in various ways like saying something very stupid in a roast comeback.
Guy 1 - The fuck is wrong with your hairline mate?
Victim - *Stumbles* uh well you're a poop face...
Guy 1 - You fucking nose-dived mate.
by ZackyZack October 23, 2017
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When a guy bends over into the doggy style position and tucks his penis between his legs so that it is sticking out the back, then the other partner comes in to give him a blowjob in this position resulting in his/her nose diving into his ass every time he/she goes down his shaft.
1) This chick was such a bitch untill she nose dived me.

2) my chick nose dived me and then spent the rest of the day brown nosing me. lol
by crazyMX October 20, 2010
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When you go down to sit on the toilet with your penis facing down, ready the piss and you undershoot the hole in the toilet seat and your penis plunges into the toilet seat.
Girlfriend/ Wife/ Hooker with many STD's: "Wanna have sex?"
Boyfriend/ Husband/ Pimp: "Naw i can't i just took a nose dive."
by giveittomerawdog August 19, 2010
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