(n) An ass so large as to simulate a shelf, table, nightstand, or other flat tabular object that one might set a drink, ash tray, plates, a TV, or what not on.
by Bystrick March 22, 2003

I am going to need some Modelo's to go... this latina girl is coming over and she has a perfect beer shelf.
by BronzeBullcocks April 1, 2010

by Ken Blair July 2, 2004

The sport of taking off the porcelain lid of the toilet tank and pooping in the tank of the toilet, thus causing the toilet's owner many days of dirty flushing and unexplained stench.
Top-shelfing
Example 1:
"Dude, I heard you got fired last week...sorry to hear that."
"That's OK man, I top-shelfed them before I left."
Example 2:
"Damn, Jimmy your apartment stinks!"
"Did Sarah top-shelf you when you broke up with her?"
Example 1:
"Dude, I heard you got fired last week...sorry to hear that."
"That's OK man, I top-shelfed them before I left."
Example 2:
"Damn, Jimmy your apartment stinks!"
"Did Sarah top-shelf you when you broke up with her?"
by Jimmy-Buckets May 30, 2009

When a person fills their book shelf with trendy novels, reference books, and/or classic literature to make themselves feel better about their base level of knowledge. Also refers to someone talking about a book they just read in a way which seems as if they had read it years before to make themselves sound well-read.
"That guy had the complete works of Shakespeare, 10 or 15 New York Times best sellers, and the Encyclopedia Brittanica 2009 Edition on his shelf. That guy has some serious shelf esteem problems."
"I was about to join one of those book of the month clubs you always see on TV, but then I grew some shelf esteem."
You: "Like that scene in the Da Vinci code...."
Someone Else: "Dude, buy yourself a 12th grade education level and get yourself some decent shelf esteem."
"I was about to join one of those book of the month clubs you always see on TV, but then I grew some shelf esteem."
You: "Like that scene in the Da Vinci code...."
Someone Else: "Dude, buy yourself a 12th grade education level and get yourself some decent shelf esteem."
by Backoftheclass101 November 20, 2010

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

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
