A derivation of lame, meaning stupid, idiotic, moronic, and any other meaning lame is used to connote, aside from it's original meaning of "crippled."
This ghey word was invented in response to the word "ghey", which was defined so as not to offend "…individuals of a homosexual persuasion." If we're going to be PC, let's be PC to all, including the truly lame. Until of course we need to also be PC to the laym. Is it laym to redefine lame? Yes, and it's also ghey.