on the shelf

if someone, especially a woman, is on the shelf, they are not married and people now believe they are too old to get married I was afraid.

my daughter would never find a husband, that she'd be left on the shelf.

by Langfreak February 4, 2016

THE Shelf

The female gluteal fold that shows itself when wearing a pair of fine ass jorts. (Underass equivalent of the underboob).

Yo, me and my bros, Eddie, Wood, and Buddy were opening up a set around Budapest on independence day and popped from 6 to midnight from all the shelf milling about.

by Jesty25 July 26, 2015

Shelf

Lame

You're so shelf.
So shelf!
Shelve your shelf self.

by G&F December 4, 2020

shelf

An ass that utterly defies gravity

<guy1>damn look at the shelf on that one.
<guy2>i know it just... sits up.
<guy1>call schmack we gotta tell him about this one.

by Grill March 14, 2005

shelfed

to store an arbitrary item in a bodily orifice for later use.

That stripper's son shelfed my phone!

by clickitdown December 4, 2006

shelf

to put something in your ass

When he saw the polices steve decided to shelf his weed

by bobbie July 23, 2003

shelf

alternate way of taking drugs by inserting them into the anus

hey gareth, i'm going to swallow one pill and shelf the other one

by staticsate November 18, 2009