Noun: a butt characterised by the sharp right angle from one's back, to the top of their ass. The thighs blend straight into the booty, but somehow it is very distinct from the back. It looks like they sat down for so long that their ass flattened out. The sharp angle makes it look and act much like a shelf.
by Chronus Pseudonymous October 30, 2018

Penis shelf is where you go to store your penis in the basement after you get married. A cold dark dusty shelf where things no longer of use are stored.
My buddy Freddie Goldheart used to slay so many gals , now that he is married his johnson is in the basement on the penis shelf
Now that I'm married I guess I will retire my johnson to the penis shelf
Now that I'm married I guess I will retire my johnson to the penis shelf
by Metroid22 January 22, 2022

When a man's dick is so small and feeble that it perches on his ball-sack acting as a shelf. Consequently, his piss runs down his balls before it reaches the toilet.
I dated this one girl for three months until she pulled down my pants and saw my shelf dick.
"Excuse me nurse..I do not know how to apply this catheter there are no instructions for if you have a shelf dick."
Bob: "Hey Ricky why do you sit down when you piss and it sounds like a leaky pipe?"
Ricky: "I was born with a shelf dick. If I stand up I will just piss all over myself."
"Excuse me nurse..I do not know how to apply this catheter there are no instructions for if you have a shelf dick."
Bob: "Hey Ricky why do you sit down when you piss and it sounds like a leaky pipe?"
Ricky: "I was born with a shelf dick. If I stand up I will just piss all over myself."
by 352 Boys April 23, 2011

by Jim Reed May 16, 2006

Gary: That bastard Jesse gave me a Columbus Shelf again!!!!!
Jason: I told you not to leave your keys laying around at the office.
Jason: I told you not to leave your keys laying around at the office.
by Jesse November 19, 2003

Usually pertaining to guys, the friends shelf is when a girl labels you a friend, disallowing you to be anything more then "just friends".
I am on the friends shelf because this girl hangs out with me and we get along great but i will never be more then a friend to her.
by Tongnar July 11, 2006

by pinkpirate88 October 4, 2009
