A woman's trunk that surpasses being classified as junk, and is in fact chunk.

In other words, a very fat woman's butt that is no longer attractive to anyone.
Hopeful Guy: Hey dude look at the junk that girl has in her trunk.

Sane Guy: Eww no she has chunk in the trunk.

Hopeful Guy: Gross.
by Cvickst July 13, 2010
Get the Chunk in the trunk mug.
Girl with a fat arse that dont care for nice panty lines!
Yo bro your bitch has got chunk in the trunk.

That chick your knocked off last night did she have chunk in the trunk
by Kenay September 16, 2005
Get the chunk in the trunk mug.
When you go diving up an ass and you find something there... (eg. poop, guinea pigs, keys, teeth, wallets, etc.)
I was gonna go diving up Sofias ass but I heard from nick she had a chunk trunk, so I ain't about that no more, knahmean?
by mashblastsnagger February 11, 2015
Get the chunk trunk mug.