1) Internet meme 
Pwn is a leetspeak slang term derived from the verb own, as meaning to appropriate or to conquer to gain ownership. The term implies domination or humiliation of a rival, used primarily in the Internet-based video game culture to taunt an opponent who has just been soundly defeated (e.g., `You just got pwned!`). In script kiddie jargon, pwn mean.....
Own
own
made to look bad
Short for step up of the word own. To `Pwn something` means to have complete control over it, and to be `Pwned by something` means to be dominated by it. (see leet )
Pulsar Wind Nebula