Another way of saying 'isn't it' / 'isnt that right' or an alternative to the phrase 'innit'. Used more as a prompt to either recall someone's memory or to try and gain agreement.
*Two friends having a drink in the pub*
Person 1: "I think I know that guy over there from somewhere"
Person 2: "Yeah, he looks like that Dylan guy we were in school with, nai"!?
You know that moment when you want to murder someone but suddenly you just want to eat cookies and cuddle? That is nais.
The prettiest Smartest, funniest and kindest girl in existence. Wifey type material. Loml. If you see this its Taim
Hi taim. I heard you like a girl named nai. Ya man. She's the prettiest smartest funniest girl there is.