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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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 05, 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 01, 2009
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having a prodigious butt

a little more than badonkadonk but less extreme than having an SUV in the pants
I don't mind a woman with a little meat on her bones, a little junk in her trunk.
by mandingoe June 01, 2004
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Adj. Describes a woman with a fair to good amount of ass. Generally caries a positive connotation.
I can't stand those anorexic girls, I need a girl with some junk in the trunk!
by MighMoS December 25, 2004
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To have an excessivly large booty, not necessarily a ghetto booty, just a large ass
That girl has some serious junk in the trunk!
by ~*GhettoGirl*~ April 20, 2003
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