P00r is when you're poor due to the fact that you've spent all of your money on l33t items... computers, computer parts/extentions/games/etc.
Person A: D00d, my new computer was just made yesterday and I already installed ten extra terabytes on its hard drive!
Person B: That's cool. I assume you somehow have money left over to pay the rent?
Person A: Oh shit, I don't! Now I'm p00r!!!!1!11