Kylie Jenner -- Watch Me Throw Shade at Blac Chyna

Kylie Jenner might only be 17, but her trash talking game is fully grown ... after she not-so-subtly taunted her mortal enemy Blac Chyna.

It started Tuesday night when Blac Chyna posted a photo showing off her sick Audemars Piguet watch. It's pretty clear Tyga gave her the watch back in the day (2013) when they flaunted their matching bling.

A few hours after Blac Chyna posted her timepiece, Kylie posted a pic of her wearing the exact same watch, with the caption "Currently."

Kylie first posted a photo of the watch back in December.

Tyga's got to get more creative with his girlfriends. Then again, cat fights are pretty awesome.