IDIOMS: Head Honcho
Example: You had better do what the Head Honcho tells you to do if you want to keep your job.
Meaning: the person in charge, the chief,boss, leader.
Origin: The Japanese word "hanchu" means 'squad leader'(han=squad, chu=chief). During the Korean War (1950-1953), American soldiers changed the spelling to honcho, and added "head" probably because head honcho made a catchy phrase. Today a head honcho is the principal of a school, the owner of a business, or anyone in charge.
Source: Scholastic dictionary of idioms: over 600 sayings, phrases and expressions / Marvin Terban. 1996.