nah man nah
A loud way to say no, like you’re tired of hearing dumb stuff and you’re not going to take it anymore.
Dad: Nah man nah. I’m not driving you to that stupid football game again.
Friend: Nah man nah. You think I’m gonna listen to your fake beat again? No way.
Teacher: Nah man nah. You think I’m gonna let you off easy again? No chance.