I Don't Know But…
A response when you’ve got zero clue what the answer is, and the teacher is giving you the side-eye like you’re a criminal.
The teacher said, ‘What’s the answer?’ I said, ‘I don’t know,’ and she said, ‘You’re not even trying.’
He said, ‘I don’t know,’ and the teacher said, ‘Then why are you here?’
She said, ‘I don’t know,’ and the teacher said, ‘You’re wasting my time.’