of Jamacian derivation:
a large posterior or behind on a female
Daaaaaaamn, that fem got nuff junk in'a de trunk!
by whiskymack February 1, 2004
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Fitted Boxer Briefs. Extremely tight underwear that shows the definition of a guy's manhood (package).
I saw Scott walking around in his Junk Trunks and there was little left to the imagination.

by Fi-Tdot February 29, 2008
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a massive cooch bulging out of a chick's spandex and or sweat suit
"look at that dudes package"

"Thats not a dude, its a chick with massive junk in the front trunk"
by Scum Pigeon March 8, 2009
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The act of having anal sex for so long your balls penetrate as well.
Man 1: Man my dude my balls are sore.
Man 2:Why?
Man 1: Cause I was fucking a chick in the ass and I then my balls slipped in.
Man 2: A JUNK TRUNK?! MY MAN! YOU JUNK TRUNKING SON OF A BITCH!!
by Painfullee September 5, 2018
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The act of busting of ones nut when pulling off a posh wank with a condom that doesn't fit
Bro, i pulled off an elephants junk trunk last night
by Stoinky Doink November 27, 2017
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1. Male Taint
2. The region between the Penis and Balls (Junk), and the butthole(Trunk)
1. Junk-trunk gap give it a slap.
2. He enjoyed a visit to the junk-trunk gap during orgasm.
by One nice bun August 2, 2009
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