by Society Against Fat Asses (SAFA) February 5, 2003

any surface at around ass level that serves as a make shift seat. Common types of ass shelves are window sills, arms of chairs, any sort of ledge, and if your creative your friends. As the word "shelf" suggests in the term, ass shelves serve as the perfect place to store your ass when a regular chair just won't do the trick.
Queefy: " Oh hey, who would have known that your arm would make such a great seat! I could sit here for days."
Hoeleen:"Don't look at me...I'm not ok with being your ass shelf!"
Queefy: "Lies...your loving every second of being my ass shelf ;) ! "
Hoeleen:"Don't look at me...I'm not ok with being your ass shelf!"
Queefy: "Lies...your loving every second of being my ass shelf ;) ! "
by PresOfDaFriends June 18, 2011

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: "..."
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: "..."
by BottomB January 18, 2010

Friend 1: Aw man I just had the best threesome of my life, mind if I use this as a dick shelf?
Friend 2: Dude, that's my keyboard!
or
Friend 2: Dude, that's my girlfriend's head!
Friend 1: Yea, she makes a good dick shelf.
Friend 2: Dude, that's my keyboard!
or
Friend 2: Dude, that's my girlfriend's head!
Friend 1: Yea, she makes a good dick shelf.
by FishHookers February 24, 2008

(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!
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!!
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!!
by michael foolsley July 4, 2012

When two men engage in double penetration (DP) of a female the man in the top hole is going "top shelf".
Dude, I'm down to DP this chick with you but I'm calling top shelf all the way. I don't want your bag slapping all over me.
by nemensclubmpls March 25, 2012

When you are fucking a chick doggystyle, and the you slip an ecstacy pill in her poo hole. Then all you have to do is wait 20 mins and you are in for some freaky shit!
Steve: Hey, did that girl you hooked up with last night night at the Gaff push back pretty hard?
Al: Nah, but then I used the secret shelf and she blew my world!
Al: Nah, but then I used the secret shelf and she blew my world!
by Sam Deighton March 14, 2009
