The Definer 

A guy who owns you.

The Definer OWNS you.

The Definer by The Definer March 29, 2004

define the great line 

the amazing new album by the awesome Post-Hardcroe/Metalcore band, Underoath, released June, 20, 2006.

the first single: writing on the walls

spencer chamberlain's second album, since joining the band in 2004,

Person 1: oh hey did you buy define the great line?
Person 2: yah its so awesome!
Person 1: oh dude I was so excited about it, I bought two copies, the limited addition and the regular one.
person 2: awesome!

define the great line by sonny moore's sexy ass body September 4, 2008

Urban Dictionary is a crowdsourced online dictionary for slang words and phrases, operating under the motto "Define Your World." The website was founded in 1999 by Aaron Peckham. 

you really pasted the description on Wkipedia

i'm bored to death

Urban Dictionary is a crowdsourced online dictionary for slang words and phrases, operating under the motto "Define Your World." The website was founded in 1999 by Aaron Peckham. Originally, Urban Dictionary was intended as a dictionary of slang or cultural words and phrases, not typically found in standard dictionaries, but it is now used to define any word, event, or phrase (including sexually explicit content). Words or phrases on Urban Dictionary may have multiple definitions, usage examples, and tags. As of 2014, the dictionary had over seven million definitions, while around 2,000 new entries were being added daily.

Urban Dictionary is a crowdsourced online dictionary for slang words and phrases, operating under the motto "Define Your World." The website was founded in 1999 by Aaron Peckham. by transdisciplinary August 29, 2021

define the variable 

something done in Math.

teacher: define the variables students
student: screw you

define the variable by CarlTheShanker November 5, 2003

should include the word being defined 

who trying to make a new word

Me:make a new word
Me:submit
Urban Dictionary:should include the word being defined
Me:how to fix?
Me:wtf

should include the word being defined by baoquan022 November 15, 2021

there are no definitions for this word. be the first to define it!

something urban dictionary says when no one has defined it

there are no definitions for this word. be the first to define it!

there are no definitions for this word. be the first to define it! by ;-; h e l p October 15, 2020

should include the word being defined 

The message that pops up when you forget to include the word being defined in the example of how it's used in a sentence. This used to not be required.

This example should include the word being defined.

should include the word being defined by bruhthisismyhandle August 19, 2021