Chefcoop Share definition Flag Originaly, Chefcoop is an english idiot. Someone like Chefcoop likes to make pitiful faces because he alway gets pwned by good Newgrounds users. Chefcoop suckz0r LMFAO!! Let's flame him and his brittish friends! Chefcoop by FBI January 12, 2005 Get the Chefcoop mug.