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.

THE Shelf by Jesty25 August 24, 2015

The Shelf Life of a Corona Vaccine 

When people around the world are questioning whether pharmaceutical companies are dead serious in producing a vaccine that could cure humankind of Covid-19, or whether their moneymaking agenda is to ensure that people move from a pandemic to an endemic situation, whereby they would need to be jabbed more expensively every year to protect themselves against allegedly deadlier variants of the virus.

If vaccine manufacturers’ motives were to enrich themselves and their shareholders, inquiring about the shelf life of a corona vaccine would be like asking them an uncomfortable or taboo question, which is likely to yield a vague or unhelpful answer.

The Shelf Life of a Corona Vaccine by MathPlus March 28, 2021

On the shelf 

(Verb) Reference to the amount of time a person has been without any sexual relations. This state can be either self imposed, involuntary or some combination.

Nikki told himself, cause he talked to himself quite frequently, "Goddamn I've been on the shelf so long I get a dick-hard when the wind blows nowadays".

On the shelf by Nikki Stixx September 12, 2020

Elf on the Shelf 

An Elf on the Shelf is an elf said to be sent by Santa, or from the North Pole, at least. They are said to watch kids be good during December, and report back to Santa if they're not. There are different kinds of elves, and they usually arrive between the day after Thanksgiving and the first week of December, while a kid is between six and eleven years old. They move overnight, often give gifts, and some are very mischievous. They sometimes come with Elf Pets, (either a dog or a reindeer) which stay all year but only move with elves.

"My Elf on the Shelf; Elfie moved into the kitchen last night!" said Clarissa.

Elf on the Shelf by GraciousGirlForever December 8, 2020

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.

on the shelf by Langfreak October 4, 2016

Elf on the Shelf: Tree Rule 

-If a christmas tree is put up the elf get extra power and more magic.
-If it has been touched than the power rehabilitates and it can have an acception of moving again.
-the tree must be decorated only past 9 and have at least one child under the age of 12 to work.
-Santa will then give back the powers of the Elf and make it stronger than before.

- Don't touch!
-Put up tree
-More power
#Elf on the Shelf: Tree Rule

Elf on the Shelf: Tree Rule by Santa Claus-Elf Watcher November 23, 2013

Elf on the Shelf 

While one person is taking a shit, he/she spreads his/her legs apart while on the toilet and allows another person to sit on their lap and shit into the same toilet.

Dude, I had to shit so bad and Eric was already on the pot so we pulled a elf on the shelf.

Elf on the Shelf by last available name December 23, 2016