A chief
When two stoners are puffing on a joint or cart, and every time one takes a hit, the other has to take a hit too, like they’re in a stupid competition to see who can stay high the longest.
Yo, I just took a chief, and you better take one too or I’m gonna eat your face.
Chief for chief, or I’m gonna rip this blunt in half.
He took a chief, so I took one too, and now we’re both laughing like fools.