Optimal

[Hina Muqadas]

Used when to describe something you are referring to without actually letting the adjective you want to use be known. Means simply, a good thing or a bad thing. Used in many ways. It takes skill.

[Jason Yan]

An exceptionally bad player in a FPS computer game. Usually used to criticize the lack of teamplay of said person.

[Couch Potatoe]

Best or most favourable; optimum.