A person that cannot be discribed by the word queer alone, they actually need to extand the word to explain their Immense gayness.
People explained with the word queerco are usually 44 year old perverts who sit around mind rapping children over online games such as:
World Of WarCraft
For the good of mankind, if you are ever called a Queerco, please just go kill your self.
Guy 1: Hi sup man, you wanna go check out the 11 year old year 7's at school
Guy 2: Dude your 44, and i dont even know you...
Guy 1: come on their hot!!!
Guy 2: OMG your such a queerco..., please just go kill your self.