What you typed in the text box after the word Look up, and then clicked search.

Also, what UrbanDictionary.com is letting us do to our world (define your world...)
Define define: Define is defined by the word definition... i.e. to explain something..
NIKによって 2004年01月19日(月)
to give a meaning to a word.
How would I define an apple?
Anonymousによって 2003年09月09日(火)