The definition of OP is 

Overpowered (usually in a video game, in which a person or group becomes or is too powerful; has become very popular in the mmorpg crowd).

I use this often in the game of Starcraft when new changes suddenly makes a unit seem too strong i.e OP.

Here's to using the term (hopefully) more in describing (seriously or jokingly) various aspects of Malaysian chess in future :)