The act of dunking on an opponent in basketball where your crotch goes directly into their face as you jump over them for the slam. The humiliation can be further amplified by hanging on the rim to keep your sweaty junk pressed into their face.
Lattrell didn’t just posterize that boy, he Junk Dunked on him.”

“Hey man, did you get a good look when he Junk Dunked on you? Was it boxers or briefs?"
by 180LA June 3, 2013
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The act of a man dipping his testicles into a liquid. Typically, junk dunking is assumed to be with water as the liquid, although this is not nessesarily always the case.
Troy excused himself from the table, but took his cup of water with him. Once in the privacy of his bathroom, he did a junk dunk.
by Lubzgroup January 8, 2013
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In process of walking through steadily rising water until it gets the the point where a man is forced to submerge his crotch to continue further
The water was cold, but once I got the junk dunk out of the way it wasn't so bad
by BrandyT January 1, 2016
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The act of putting ones penis (junk) into a basketball hoop.
"Hey bro, i was playing some hoops with my girl and i totally Junk-A-Dunk'd on her ass!"
by VerminSupreme November 10, 2016
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it is another way of saying some part of a persons body that is massively big.
this is mainly used when talking about a females boobs or their ass.
by haploid February 28, 2008
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