Green’s Dictionary of Slang

(orig. US) to lead, to direct others in a task or plan.

1958		(con. 1950) E. Frankel Band of Brothers 102: Skipper’s going to honcho when we jump off. [...] We’ll be okay. You see Skinhead down there honchoin’ the company?
1962		Blake Heartbreak 28: You’ve got to honsho a truckload of GI’s [HDAS].
1975		B. Greer Slammer (1977) 233: Honcho this thing out and you get blowed away.
2001		North County Times 21 Oct. 🌐 If she wants to honcho the entire celebration this year, I am more than game to hand over the reins.