phrase used to silence someone usually after saying something retarded. Or just to shut someone up even if they may have a point. Along with the added effect of ruining nearly any setting.
Todd: "Rich, turn the car off you're wasting my battery"
Rich: "Eat the dick, you use less battery power if it's on."
Todd: "what no it don't!"
Rich: "eat the dick"
-akward silence for the other 4 people in the car-