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It's a form of laughter, such as lol (laugh at loud)
If you tilt your head to the left, xD forms face, the x acting as an eye, & the D as a mouth...The extra D's are varied, according the ammount of laughter intended.
Person 1; Yes that was well funny :L
Person 2; yeah, xDDD
by Cookieee April 26, 2009