Nunja

A term used when one prefers to jokingly convey a response meaning "none of your business".

Also the exact phrase of origin.

Person 1 "Hey Wahtcha doing over there?"
Person 2 "Nunja.
Person 1 "Nunnja, what's that?"
Person 2 "Nunja god damn business!"

by SSPprod September 18, 2008