Definitions by FENTY+

KY 

KY( kuukiyomenai): Japanese offensive word for someone who can't read minds or someone who speak out somethings.

(Shiori speaks out in Paris. #Metoo)
Kazu: She's such a KY. Shame on her, she makes Japan look bad.
Lee: No, the cover-up is always worse than the crime. She just spoke out to make society better.

Kazu: Shut up! You're a KY too!

KY by FENTY+ May 8, 2018