1: An area in a video game, especially Super Smash Brothers, where one can get stuck or trapped in such a way that he may be repeatedly and relentlessly pwned by an enemy.
2: A respawn point, especially in COD Black Ops, which is in very close proximity to the enemy or behind enemy lines, causing one to die very soon, sometimes immediately after spawning. Especially used when this occurs several times in a row.
Dude, get your ass out the pwn zone!
" f**k! I keep spawning in the pwn zone!'