The act of locking your young lady in a Full Nelson wrestling hold whilst ploughing her from behind.
Spot the dog yelped excitedly as Jack made Jane yelp as he plugged her blow hole with a Balls deep Nelson
by MurderousYoric May 26, 2009
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In a precarious situation; see "hairy"
My friend in college was dating (may still be) a woman with very hairy eye-brows. I nick-named her "Brows." One early morning, a friend asked where my friend who was dating "Brows" was. He was indeed in bed with her, doing the nasty probably, although we always gave him a hard time about it. I thus simply answered, "Balls-deep in Groucho." From then on it became synonomous with being in a "hairy, tight, or precarious spot"
"Dude, what happened with you at the party lastnight? I heard both of your girlfriends were there.

Yea man, I was so "balls-deep in Groucho"
by LDR November 9, 2006
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When it's so cold out that you tuck your scrotum into the woman's vagina during sex to keep it warm.
"It was so freezing last night I was pounding my old lady and had to go Eskimo balls deep to stay warm!"
by Mr. Fisty Freeze February 10, 2017
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When a person or persons lick a mans testicals so hard that the balls fill their mouth.
I licked my man balls deep last night and he moaned so loud the cat shit his pants lickin balls deep is great.
by Meeplord December 11, 2018
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During any sporting event, when someone has been throughly fucked.
When everone agrees that they were completely embarrassed.
I'v never seen a spike that hard to the face.
Yeah, he was balls deep in that ass.
by Demon by the deed June 30, 2004
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what the inside of the brandy's mouth is like
I ate so much food, my mouth was balls deep
by patmccrotch February 16, 2005
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