Just the most prefect retort to any insult. It works because there's just no come back to it. It's so stupid that you win!
A says, "Omg B, you're a dipshit."
B says, "No you are, your face is."
A says, "Uhh..."
A says, "B, why do you want to marry a goat."
B says, "Your face, that's why."
Librarian whispers, "Quiet please, it's a library!"
B screams, "NO YOU ARE, YOUR FACE IS. KILLBOTS SHOOTING LASERS!!"