Yesterday this old man working the register at Target made some football small-talk when he saw my Jets cap. Old Man: So what do you think about the Patriots gettin beat by the Colts? abyzmul: GPC, baby. Old Man: Huh? abyzmul: You know it, brother.
Urban Dictionary....as many things as they have on that site, they won't take a GCP definition, that's bullshnittzles