Top Definition
Noun: in mammals, the property of having conspicuously large or exaggerated mammary glands and tissue.
If I had just a little more junk in the top bunk, I could totally run this town.
by Dan Craig February 17, 2006
1 more definition
antonym of junk in the trunk; a female (or male) who is abnormally heavy in their bubbie region.
Joe: Dude do you see that girl over there.
Mark: Yeah she got alot of junk in the top bunk.
Steve: Hey thats my sister!
by excessBaggage August 17, 2010

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