Something formerly important that is no longer significant.
My luv fo` her x'ed out! Now ah` only got eyes fo' ya, babe!
by William Warney July 03, 2009
Rolling (ecstasy) so hard that you can't function.
I saw this girl at a rave rubbing her back against the bathroom wall with her eyes wide open while people kept trying to squeeze past her. She was completely Xed out.
by advaschechel December 10, 2011