The 'yeah' means "oh yeah i thought about it" while the 'nah' relates to the answer
"yeah, i thought about it, but nah, dont think i will aye"
Very common expression in New Zealand
Hard to explain, but a very useful word, so not to hurt anyones feelings with a blunt 'nah'
"you going out tonight?"
"oh yea-nah, was gonna, but not anymore"
29๐ 9๐
Yea nah means no but if someone goes nah yea that means yes but if someone goes yea nah yea thatโs yes
Mate1: hey wanna beer
Mate2:yea nah yea cheers bruv