The female version of the word nibba, coined by Indian meme community.
It's usually used to describe a cringy person(usually a teenager) who does immature things in the name of love.
My insta feeds are filled with Nibba-Nibbi's
a derivative of the word nibby which means a nosey person as the name sugest this person is 2 times as nosey
the nibby two is worse than the nibby women down the street