A relic of the large US presence in Japan in the years following World War II, the word honcho comes from the Japanese word hanchō meaning “leader of the squad, section, group.” We are uncertain of the exact route by which honcho found its way into American military argot in the mid-1950s, though it is known that the Japanese applied hanchō to British or Australian officers in charge of work parties in prisoner-of-war camps. By the 1960s, the word had become part of colloquial American jargon.