facio pupas
A lazy, stupid, and sometimes offensive way of saying you don’t know the answer, like you’re too dumb to think and too dumb to care.
"Facio pupas?", said during a Latin test when the question was about verbs and he thought it was a math problem.
"Facio pupas?", used in a debate when he had no idea what was going on.
"Facio pupas?", whispered by a kid who thought it was a secret code.