XD by Sparky101-102 October 16, 2008
NormalKid: Can you believe I fell down the stairs at school!?
AnimeFan1: I KNOW! How embarassing! XD
AnimeFan1: I KNOW! How embarassing! XD
XD by BubbleGumPunk December 14, 2004
It stands for crossed penises, with X, representing the shape of the two dicks and D, which means penis.
XD by WTF123@STFU.com September 5, 2016
XD I'm dead inside XD
XD by Czech Me Out January 15, 2018