:x 

Used when someone has nothing to say/doesn't want to reply. Also used when someone has a comment, but doesn't want to say anything.

noob: ne hott guyz press 31 2 tlk!!
me: :x

:x by DCP December 28, 2004

:x 

-When you've said something you don't think you should have said.
-Emoticon for a kiss

person 1: "My boyfriend isn't talking to me much lately :("
person 2: "That's good :x"

Person 1: "Aww, Ily :)"
Person 2: "Ily too :x"

:x by ThoughtsofDarkness October 4, 2009

:x 

Someone trying not to puke.

I think i'm going to be sick :x

:x by johan666 April 12, 2009

:X 

It simply resembles a kissing face. The semicolon represents the eyes, and the X represents the lips. Its just a cute little kissy face.

Nick: Hey beutiful gorgeous.
Me: Aww arent you sweet.
Nick: You're sweeter love. :X
Me: :X

:X by NiKkI [Nick's Girl =)] February 28, 2009

:X 

sending someone a kiss

eddie: I love you.
Aoann: I love you too. :X

:X by angie54703 October 1, 2005

:X 

ahhhhhhhhhhh

:X by Uncle jeebs January 19, 2003

:X 

To have an asshole for a mouth.

<Klingon> :x Fuck me in the mouthen!

:X by Bastardized Bottomburp August 18, 2003