shelf butt 

A large butt on an otherwise not large woman. So oddly large that it protrudes like a shelf.

If you just saw Jane from the waist up, you'd never guess how big her ass is ... what a shelf butt!

shelf butt by BWS June 13, 2005

Shelf Butt 

a bum that sticks out i.e like a shelf.

"you could set your glass on that shelf butt"

Shelf Butt by Scottski.M April 2, 2009

Shelf Girl 

A Shelf Girl is a word used to describe a girl who is used by guys only when they're desperate for some lovin', and haven't gotten laid in quite a while, so they call up a Shelf Girl, and invite her over. After getting some, they casually put this girl back, and completely ignore her until they're ready for another booty call.

Girl: "We totally went to 3rd base last night, we're in love!"
Boy: "Nah, you got it all wrong. He doesn't like you much. I mean sure, you're hot and all, but you're also a real annoyning bitch. You're just another one of his Shelf Girls. Sorry to break it to ya'!"
Girl: "..."

Shelf Girl by BottomB January 18, 2010

shelf life

(similar to one existing def.-but expanded!)

length of time of physical and/or sexual desirability in a human. a reference to body parts 'gone/going bad' due to lack of maintenance, genetics, and/or 'human chronological erosion'

-'goods' 'for sale', only at their 'prime' for a "limited" time!!

a sunny, optimistic, "good personality" (other skills?) MAY sometimes offset this!

that babes' shelf life is increasingly SHORT!

his beer gut is superseded by his million dollar payday, extending his shelf life.

the old fool imagined his shelf life hadn't expired 20 years previous...

the shelf life of that perky butt is questionable!!

shelf life by michael foolsley July 4, 2012

Shelf over the toybox 

A beer gut.

He's OK for an older guy, if you don't mind the shelf over the toybox.

Shelf over the toybox by Drawn & Quarterly April 25, 2010

Shelf-righteous 

(adj.) Having or being characterized by an unprecedented lack of morality in the presence of others, often to please others. Someone who is shelf-righteous is congenitally virtuous, but often leaves their morals ‘on the shelf’ in the presence of their friends or coworkers. A shelf-righteous act is typically done to appease a peer whose view is highly bigoted or jaundiced.

Person 1:I can’t fathom why he would ever say such a thing. He’s not that kind of person.
Person 2: He probably said it in the heat of the moment, in the presence of his friends.
Person 1: Wow he’s so shelf-righteous.

Shelf-righteous by endearingfellow May 7, 2020

Shelf Warmer 

The unwanted toys at a retail outlet.

Man I wanted a Marvel Universe Blade figure but all they had were shelf warmer Spidermans.

Shelf Warmer by DanceLoganDance December 17, 2011