One who has access to many administrative features on various servers of various different games. Server admins are saviors to some, but assholes to others. Some features include but are not limited to kick, ban, temp ban, burn, slay, teleport, freeze, switch teams, global chat. (these commands taken from various games)
Player: There is a guy in here who is hacking!!!111!!
Hacker: Haahaha lololololol!!!1!1! you can has no Server Admin to can has kick meez!!! ROFLBOAT!!!!
Server Admin: I can has ban you!