Shelf 

The act of taking ones hands and pushing up their boobs in a moderately sexual way in which the goal is to excite a man or multiple men. The most commonly used technique is when the hands of the "shelfer" makes a straight line or a "shelf" and lifts the breasts up, and then back down. The word "shelving" most commonly refers to women, however men can shelf their man boobs or moobs for comedic purposes.

To get the attention of some guys at the party, Julie she decided to shelf.

Shelf by TheTheatricalFedora July 28, 2011

Shelf 

A pair of tits that are so big you can use them as a shelf.

Look at the shelf on that stripper.

Shelf by merdogg January 16, 2010

Shelf 

A girl with a awesome pair of boobs

Dude did you see that girls shelf? They look like they can hold a stack of books

Shelf by Lee John March 12, 2014

shelf 

really good situation

legend--> the end of a ledge--> a ledge--> a shelf

i got you a present thats proper shelf

shelf by emalicia August 31, 2007

shelf 

a recently invented athletic sexual manouver similar to a WWF smackdown move.

the female involved lies down face first on the bed lips spread wide from behind, whilst the male climbs the bookshelf or other bedroom furniture (at least 1.5 meters high). with no prior warning the male launches off from specified height aiming to spear the female with his old boy

matt used the shelf move on leia last night and broke something in her vag

shelf by olly k October 9, 2007

shelf 

If a certain lady has a big rack, she needs a shelf to keep them up.

"Did you see that shelf?"

shelf by Shred October 7, 2004

shelf 

To insult a person by arriving at their home and taking a dump on thier bathroom shelf.

Goo goo ga ga

shelf by Gooche May 11, 2004