Top Definition
You looked this up.

Used as a prank, you reply to IM conversations with YLTU, and see if they deny or admit that they 'looked this up'.
-IM chat window-
John: 'Hey Sally, YLTU.'
Sally: *googles*
Sally: >.>
by Wewp November 12, 2009
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.