Nah yeah - An Aussie thing that means nothing but sounds like everythin

An Aussie thing that means nothing but sounds like everything, and it’s usually used by people who think they’re cool because they say it.

Nah yeah, I'm gonna be the best at everything, even though I failed my last test.

Nah yeah, I'm gonna be a genius, even though I can't even add 2 + 2.

Nah yeah, I'm gonna be rich, even though I still live with my mom.