Wiktionary
alt. 1 (context emphatic colloquial English) (non-gloss definition: Used sarcastically to answer "no" to a question where the negative answer should have been obvious.) 2 non-commital expression with various applications, including: denotation of conclusion of cursory difference(s) of opinion between speakers ("''yeah-nah, he's a top bloke at the end of the day''"), and/or perceived escalations of discord ("''yeah-nah, I can, however, see where you're coming from''") interj. 1 (context emphatic colloquial English) (non-gloss definition: Used sarcastically to answer "no" to a question where the negative answer should have been obvious.) 2 non-commital expression with various applications, including: denotation of conclusion of cursory difference(s) of opinion between speakers ("''yeah-nah, he's a top bloke at the end of the day''"), and/or perceived escalations of discord ("''yeah-nah, I can, however, see where you're coming from''")