Used to describe someone who is very good at computer games, or is too good at computer games. Asians are generally known for being good at computer games, so a Fat Asian is considered an extremely good gamer.
Frist started being used in dota
and has since spread into the MMORPG
John and Bob are playing a computer game and Bob is continuously killing Bob.Bob says "BOOM HEAD SHOT
" John says "Bloody hell, stop killing me you fat Asian!"