What does chief mean ?

[Alyssa]

I understand that people are starting to say the word chief a lot as a slang and I heard that it meant to smoke drugs and stuff, but there has to be another definition to it because I've seen 13 and 14 year olds use it as a description in their pics and on Twitter and stuff. Is there another word for it ?

[Frank]

the boss or someone who runs everything

[Emperor Tikacuti]

Chief is a leader or ruler of a people or clan.