Top definition
The millions of definitions that you see when you try to approve definitions on urban dictionary that has to do with someone's name, followed by something extremely positive/negative about
*on urban dictionary, when the definition "billy" pops up *
(on computer screen) "billy": a super awesome and amazing guy that everyone loves.
Joe: Dude, another lame word popped up!
Steve: Yeah, it's another vain definition.
by Señor Mister January 11, 2015
Get the mug
Get a Vain Definition mug for your cousin Paul.