Not really "English" so much as "gamming"
MMORPG (Massive multi-player online role playing game)
L2 (Lineage version 2) we played it for 5 years.
WOW is World of warcraft played that for 4 years (on and off while playing L2)
DDO Dungeons and Dragons online. While the P&P (pen and paper) was our first love and we played it every waking moment while dating and when we first got married, the online version is really really bad.
PVP means you can kill other players sometimes you have to ask them to duel (like WOW non pvp servers) and sometimes you can walk up and kill them for no reason except to be a

. Pretty much.