chief cook and bottlewasher - Phrases/Idioms
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
A person in charge of numerous duties, both vital and trivial, as in We have no secretaries or clerks; the department head is chief cook and bottlewasher and does it all. [Slang; c. 1840]