ex dee is sometimes used in place of XD, which is used for expressing laughing so hard you're squinting. Ex dee is (not so) commonly used in instant messaging to try to be funny.
by acgamer222 June 13, 2006
A fanfiction-type thing started by Trigger featuring members of Sonic Classic, Sonic CulT, The Moogle Cavern, and STH Area 51. Narration is assisted with screenshots of games that match the events.
<Ryoga> Kurai, you can sit on me, but at least take your skirt off first.
<CulT> NOW ISN'T THE TIME RYO
<Ryoga> ;_;
--excerpt from Ex Dee 3
<CulT> NOW ISN'T THE TIME RYO
<Ryoga> ;_;
--excerpt from Ex Dee 3
by dj gs68 October 27, 2003
(verb) to type XD, which, if you tilt your head 90 degrees left, is the emoticon of a face grinning so hard that its eyes are squinting.
by buzhwa June 3, 2005