The most normie thing you can type on any chat (mostly LoL).
Shows you inner 9y/o.

XD is the term used to show enjoyment of something comedic or found funny/hilarious by an individual. It is mostly used by talkative teenagers who either don't have an easy access emoji keyboard, or they talk too much to have time to use the emoji keyboard. Also used to show more emotion in your comedic reaction than a simple "lol" or "lmao". "XD" resembles a close-eyed laughing face, appearing to be falling over

An emoticon for "Similing with your eyes closed"

A set of characters entered via textbox typically used in response to a statement to imply a sense of confusion or other questionable objection. The most prominent place to find the use of this term is within the "League of Legends" community.

XD is an abbreviation for " Extra Dick".

The Creation of the "xD" Being used as "extra dick" Began with all things becoming Rad and Youthful.
To Ratify "Extra" like the word "Extreme", we remove the "E"!.
D for Dick.

Non-normie way to laugh on internet in spanish, while more 'd’s' more funny is the thing that you are laughing or more cruel

The only version of xD that will not make you lose respect, makes anything ironic and should not be overused.

It is also ironic.