said : yeah.... naaaaaaaaaaaaaaaaahhhhhh
used when you are in a conversation and you kinda get what the other person is saying but dont quite agree with what is being said, or dont really give a shit.
cuz: hey bro, did you borrow my bloody car?
bro: yeah nah , i think it was the other guy
New Zealand slang, strangely enough, meaning yes.
"Did you come home alright?"
"Yeah nah, sweet as."