Wiktionary
chief cook and bottle washer
n. (context humorous informal English) Someone whose responsibilities include absolutely everything, from the highest level (chief cook) to the lowest (bottle washer)
Usage examples of "chief cook and bottle washer".
He's not going to be content staying here as chief cook and bottle washer forever.
I'm Jonas Becker, Chief Executive Officer as well as Chief Cook and Bottle Washer of Becker Interplanetary Recycling and Salvage Enterprises, Ltd.