Gay slang for depositing semen in someone's ass during unprotected (bareback) sex.
Dude! I was in the sling at Ft. Troff and this really hot guy was pounding! When he finished, he left his junk in the trunk, and there was a puddle on the floor!
by Markus Dastardly June 24, 2006
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
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
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
a girl that has a nice big round ass
all of you fat white chicks taking pictures of yourself dont have junk in the trunk, youve just got a big fat flabby white ass, a nice ass is round and on a girl with a tight body, so stop posting pics of urself and posting them definitions like these
by sycop August 16, 2005
A medical term used to describe a female with a disproportionately large gluteus maximus region in relation to the rest of her body. Scientists have discovered that, in this condition, any food eaten by the afflicted turns immediately to fat then migrates rapidly to the gluteus maximus. Research has found that this ailment is widespread throughout many areas of North America and is oddly prevalent in African-American females. While there is no known cure, as long as there are males of the species and alcohol remains readily available, these females are still well-received in society.
White Guy: Hey Snoop...that Maltliqueisha has some serious Junk in the Trunk, huh?

Snoop: What tha hizzle did you say to me, cracka?

White Guy: Uh...it has to be 4:20 somewhere...

Snoop: I thank I forgot sumpin' in ma car (ya know what I'm sayin')...I'll return in a minizzle.

White Guy: Word!
by Illiterate December 14, 2005
:a project chick that has a shapely ass and a small waist. a round jiggly ass.
You can tell Keisha has junk in the trunk by the way she's throwing dat ass from side to side.
by vinchap February 15, 2005
1. A really nice ass, usually affiliated with black women.
2. Sex
1. Damn that chicks got some junk in the trunk!

2. ... I put my junk in her trunk...
by MaximumOverdrive October 18, 2008

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