i'll be back
A very polite way of saying ‘fuck off’ or ‘this will never happen.’ It’s like being insulted with a smile.
‘I’ll be back,’ he said, and then he walked out of the room like he was royalty.
She said, ‘I’ll be back,’ and then she left and never came back.
He said, ‘I’ll be back,’ and then he turned into a robot and left.