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is undefined 

the description of a word that has not been defined in the by urban dictionary viewers.
is undefined by James T. Carson April 22, 2006
Words you can keep

Undefined 

See the example below.
See the above definition for undefined.
Undefined by Mr. Bodkin Newberry August 22, 2007

Undefined 

Ugh this math is frustrating! ITS SO UNDEFINED!!
Undefined by InS4nity HD October 13, 2016

undefined social life 

1. The idea of having a social life does not exist in the person's mind. Where the idea of having friends, the concern of not having friends and dating is inconceivable and is of not existence. The reason being is that person has never been predisposed to it in the first place, so the idea of not having friends does not bother him or her. In other words, take for example the Sims computer game. It's like having a sim that has no social bar on the needs indicator. By having an undefined social life, the person does not have to worry about maintaining friendships, giving gifts, working out relationships,losing, nor betraying friends. Because the person who has and undefined social life has nothing to lose. It's like dividing a number by zero when it comes to determining the number of friends an undefined social life person has.
John has never had friends; he does everything by himself. He must have an undefined social life because he is always happy doing things by himself. Whenever someone asks John if he has ever had a girlfriend, he just looks at them weird at complete and utter confusion.
undefined social life by AJHM June 5, 2007

undefined 

A word in the urbandictionary that is lacking definition.
This word was previously undefined.
undefined by Denis Baldwin June 3, 2004

undefined behavior

Undefined behavior results when programs attempt to do things for which the standard defines no semantics, and requires no diagnostic either. Examples include dereferencing invalid pointers and dividing by zero. Executing such programs may cause them to produce incorrect results, crash, silently "work", or even format the hard drive.
It is commonly joked that undefined behavior allows the compiler to insert code that will start a game of nethack.
undefined behavior by henke37 May 23, 2014

Undefined 

What you wish half of the words on here were.
Undefined. Magical Word.
Undefined by Jaibow August 29, 2011
More from Urban Dictionary

board chow 

A)
The Crud that collects under the keys in a keyboard. Usually more severe in the keyboards of programmers and webmasters as they tend to spend a lot of time at the the computer and thus eat at their desk. Mainly affecting IBM Model M (clicly) style boards.

B)
Can also be used to gross out Non-Techie people
A)
Bill: want to go to the club?
Bob: No, I've got to clean out my board chow, keys are starting to stick.

B)
Bill: Want to go out to get a bite?
Bob: No, i am just going to have some of my board chow/
Bill: Whats' that?
Bob: The food scraps that collect in my keyboard; Want some?
Bill: *GAG* *HURL* *GAG*
board chow by BinaryHackerMan September 3, 2007
Word of the Day on August 26, 2026

young pup 

a young person, a young adult in their late teens/early 20s.
Ah, you're just a young pup at 23!
young pup by the dog May 30, 2006
Word of the Day on August 25, 2026
West Midlands slang word for rockers, bikers, greasers etc. In the late 1980s it was used by the UK music press to refer to a specific scene centered around the bands Pop Will Eat Itself and Crazyhead. The term never found favour with readers of 'the inkies' (Sounds, Melody Maker and the still extant NME) and was soon dropped. Now often used in predominantly working-class areas of the midlands and the north to mean someone who listens to rock-derived music and/or dresses in a manner that suggests they affiliate themselves with rock music of some kind.
Some grebo passed with Sabbath playing on his stereo.
The Poppies are at no. 17? God, a grebo band in the charts!
They're playing nu-metal now, bloody grebos!
grebo by cactuscat September 15, 2006
Word of the Day on August 24, 2026

TikTok Farlands

TikTok Farlands is a term to refer to videos that you see after scrolling for a long time. These videos can potentially be disturbing, or weird. Said videos can also have low likes, or low comments.
“I reached the TikTok Farlands bro
Word of the Day on August 23, 2026

mormon assault vehicle

another term for a station wagon, mini-van, or any other kind of vehicle that is targeted at the "family" demographic(also M.A.V.)
"Tactical advantages aside, the M.A.V. is top of the line for the holy warrior troop transport manufactured by the Church of Latter Day Saints Military Industrial Complex. Also great for family trips...to heathen lands."
mormon assault vehicle by KVRX January 10, 2005
Word of the Day on August 22, 2026

Shakira Law 

A version of "Sharia Law" that Reform Ltd supporters tend to refer to, often by mistake.
Richard Tice of Reform now lives in Dubai, under Shakira Law, although telling Brits that we should worry about it
Shakira Law by Reformltd February 16, 2025
Word of the Day on August 21, 2026

Overstand 

To understand a topic or statement to the highest extent.
Leroy, after being told the tenth time by his sister, did overstand her idea of robbing the 7-11.
Overstand by Elf Eater March 23, 2003
Word of the Day on August 20, 2026
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