It stands for Pen 'n Paper, the original way of playing a RPG (way back before computer games). Also, known as D&D, AD&D. People still do it. I've never had anyone to play D&D (PnP) with, but have always wanted to. I know some people that do play (just no one around me. Probably other people could tell you alot more than I.
------------------
O_H_F
