When doubled, a 2010s dance fad (3)

I believe the answer is:

nae

(Other definitions for nae that I've seen before include "Scottish negative" , "Scots form of no" .)

I've seen this clue in The New York Times.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.