Nischaiy Posted in N Best definition Nischaiy A Pain In The Ass (PITA) Someone who is just such a Prat. In a gay way. Dude, he’s so annoying, he’s sucha Nischaiy How satisfied are you with the definition? Looking for Nischaiy meaning? Delighted that you discovered the greatest determine on our web site! Recently this definition was actually observed 44 times.