1) An emoticon, with ones eyes crossed and tongue sticking out. Obviously this means "retarded."
2) The most recent edition of the Windows OS, recognizable by the GUI that looks like it was made by Playskool, and the code that was probably written by same. The OS was named for said emoticon.
3) Short for Experience in many RPGS. Variant of EXP.
"LOL! XP"
"Delete XP and install Slackware, dipshit."
"You need 100 XP for a level."
by JiaXue September 15, 2003
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1:wow she has 784 XP

2:yeah pure respect man
by Ali.xoxo September 18, 2015
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xP is usually used when texting sms's or mail's to say that you are kidding about something,that you did something better than your interlocutor... xP
Person 1 : I got 8 on my Maths test...
Person 2 : Well,I got 10,as I was studying all night long... xP
by simply_adorable July 31, 2009
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Abbreviation for 'XPISTOS', Greek for Christ.
Why does Father John have an XP on his robes?
by ScottX November 27, 2006
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1) Short-hand version of "Windows XP," one of Microsoft's operating systems for PCs.

2) The first two letters of the Greek word XRISTOS, Christ; -- an abbreviation used with the letters separate or, oftener, in a monogram, often inclosed in a circle, as a symbol or emblem of Christ. It use as an emblem was introduced by Constantine the Great, whence it is known as the Constantinian symbol, or monogram.
1) "XP is so much more stable than 98, but the work space is so small and they re-arranged the UI... again!"

2) "WHOA! I didn't know XP is the shortened Greek version of Christ!"
by R.P.G. May 2, 2003
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An emoticon for a sneering face, ie "You're an idiot!"

Also the name of a Window's operating system, ie "You're an idiot!"
by Hippy on a Bicycle October 22, 2003
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The International, Universal, Inter-galactical emoticon face of Constipation. Can be used in place of the words, constipated, constipation, constipate.

Commonly misinterpreted to be:
A) laughing-with-tongue-out
B) a version of Windows

Misuse can result in disgust and confusion.
Correct use:

Person C: "Hey, how are you today?"
Person D: "I'm pretty good. A little XP"
Person C: "Oooh, damn. Want a Laxative?"
Person D: "Thanks that would be awesome!!!"

Misuses:

Misuse 1:

Person X: "...then she told this joke and I was all XP!!!"
Person Y: "Ew, you're Disgusting!!!" *Pukes*

Misuse 2:

Person X: "Hey, what's your computer on?"
Person Y: "Windows XP"
Person X: "Ouch. I know the feeling, man."

Misuse 3:

Person Y: "I wanna make you XP"
Person X: "Excuse me???"
by Goodness June 22, 2007
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