Hit it! Watch this adorable grandmother's reaction to a Juul

This grandmother had the funniest reaction to her granddaughter's Juul.

In the video filmed in Mesa, Arizona on December 7, the grandmother is seen holding the e-cigarette with a look of confusion on his face.

"Hit it!" The granddaughter says.

"Hit this on what?" The baffled grandmother replied.

"Your mouth!"

The grandmother proceeds to touch the Juul to her chin, unclear about the vernacular.

"My mom was terrified of me having my Juul around my Grandma," the filmer said. "So I decided to ask her to hit it just to see what happened and this is what happened."