Nyaff is a word used mainly in the West of Scotland; especially around the Glasgow area that is used when referring to someone who is a bit weird or 'off' or just to refer to someone who you don't like in general.
Bob: Ahm no too keen on that Tam ae, he's a wee nyaff so he is.
Naffer is named after Team LiquidCounter-Strike player Naf, his fans are called Naffers and they usually spam this word in twitch chat as soon as he makes a play
British slang, today meaning uncool, tacky, unfashionable, worthless... or as a softer expletive, in places where one might use "fuck" as in "naff off", "naff all", "naffing about".
Origins of the word are disputed, but it appears to have come from Polari (gay slang), used to dismissively refer to heterosexual people. It was introduced as a less offensive expletive verb ("naff off") in the '70s UK television show, Porridge. "Naff off!" was famously used by Princess Anne in 1982.
Njaff describes the feeling of looking objectively on the world, or as in when your sleep-doped, been up for days or laugh so hysterically u feel like your experiencing something from a 3'rd person view, while still awake.
a kinder way of telling someone to "fuck off", was first used in the book "Kes", but popularised in the british tv series "porridge", a comedy series about a prison and its occupants. Norman Stanley Fletcher used it constantly as a way of getting around tv censorship.