Yes, it’s vulgar. Yes, it’s crass. And no, you shouldn’t say it to your grandmother or your boss.
It describes something so impressive, so shocking, or so skillful that it defies logic. If “cool” is a 5 and “amazing” is a 7, Niubi is an 11. niubi meaning
The short answer:
Often shortened to just in text messages or online chats, this word is everywhere. But what does it actually mean? Is it a compliment? An insult? A curse word? Yes, it’s vulgar