It means sticking out your tongue.
Normally the letter p is used after the equals sign to produce an emotiocon. It represents a face with the tongue sticking out. =P
chat <P>My thesaurus lists "dirt".</P>
i knOw..:-P
There is no 'P' in "facebook."
In a letter, "P. S." means "Post Script."
Well, if by clan you mean party, and if by chat you mean whatever you say only the party/clan members hear it, go to the chatbox thing where you type words, type in /p and then type in whatever you want.
Type /p to talk in party chat. Type /s to exit party chat.
pastrami
props
permit
How the heck are we supposed to answer this? Open your chat on what? funny how people think you can read their mind :P
It's "pwned" - it started as a mis-typing of the word "owned" where you hit the P instead of the O key.