N'Yegh
A stupid sound that comes out of a lady's private parts. People use it like they're smart, but they're not.
'N'Yegh, I'm going to eat all your food!', said by a guy who still eats cereal for dinner.
'N'Yegh, I'm the best at this game!', said by someone who's never won a match.
'N'Yegh, I'm going to be rich!', said by a guy who still uses a payphone.