cokin
It is the slank used to call the Chinese people.
Both of them are cokin.
Cokin it up
to act so amazingly stupid that people think you're on drugs
Person 1- "Wow, that's the 4th time he's fallin UP the stairs"
Person 2- "Yeah, i think he's been cokin it up"
Person 2- "Yeah, i think he's been cokin it up"