Galonk
A stupid thing to say when you're clueless and just want to sound cool but end up sounding like a confused idiot.
'Galonk,' he said, like he just solved the meaning of life and everyone else was an idiot.
'Galonk,' she muttered, because she had no idea what was going on and was too proud to ask.
He just said 'Galonk' when the teacher asked him a question and he had no idea what it was.