I ain't got a fucking clue
A loud and rude way of saying you’re clueless and don’t want to look like an idiot.
He got stuck on a video game and said, 'I ain't got a fucking clue.'
She couldn’t find the remote. 'I ain't got a fucking clue,' she said.
He didn’t know what time it was. 'I ain't got a fucking clue,' he yelled.