xD means someone finds something that funny that they are too lazy to write down an complete laughter just like: Hahahahahahahahahahahahahahahahahaha.
You are playing a game and you're game character is stuck in the floor then some people would say:
"xD why are you in the floor?
Me: I have crippling depression
Someone else: lol
A random guy: xD
Used in response to a questionable action or decision made by a friend or colleague. Mostly used to laugh at the individual, making them realise their mistake.
Thomas: Hitler was a good man.
Philip: xD?
Used as an expresion, for ultra boiass peopel
Frist person: Let’s pet a goat!
Second person: xD okay!
XD or xd is used when someone is
-trying way too hard to be cool with the kids
-stuck in 2011
-9 years old
-dumb
UnfortunatePlayerWhoGotKilled1999: I bloody hate random crits
UnfunnyAnoyingTenYearOld2009: XD lol u so randm y hate dem, ist part of the gam
Literally everyone: *a vote kick has been started to kick UnfunnyAnoyingTenYearOld2009 for being a dumbass*
xd is the none-aids version of XD or xD
Hey bob what do you think of roblox?
roblox = xddd