nah man nah
A way to say no that sounds like you're just done with life and everything that comes with it.
You: Nah man nah. I’m done with this stupid plan. I’m just gonna go home.
Friend: Nah man nah. I’m not going to that stupid party. I’d rather be sleeping.
Bro: Nah man nah. I’m not listening to your dumb story again. I’m out.