An interjection to something annoying/boring/unfunny, often used to either get someone to stop talking or to tell them they're being an idiot
Harold: Hey, what's a frog's favourite drink?
Beth: I don't know
Harold: Croak-a-Cola!
Beth: Beep Beep
Beth: I don't know
Harold: Croak-a-Cola!
Beth: Beep Beep
by collided January 05, 2018