It Literally translates to "Special" in Indian and Nepali and Yes There is a language called 'Nepali', sure it's pretty much like Indian language but it's not and It's spoken in a country called Nepal which is in between India and China Not a part of either one of those. Also it's a name given to cute boys :)
Karen:Hey, Bishesh You're looking good today(with malicious intentions).
Bishesh: STFU KAREN I look hot EVERY DAY u Dumb Hoe.
Another word for dumb ass, students usually use this word in class to call someone stupid, it helps then not get in trouble for cursing, or they just use it to insult and play around with there friends