Laddums
You make someone say 'huh' or 'what' and then you say 'laddums' like it's the most epic thing ever
He said 'what' and I said 'laddums' and he said I was weird.
She said 'huh' and I said 'laddums' and she gave me a weird look.
They said 'what' and I said 'laddums' and they called me a loser.