a girl Friday

a girl/man/person Friday

a person who does many different types of usually not very interesting work in an office

Usage notes: Man Friday is the name of the servant in the book Robinson Crusoe by Daniel Defoe.

The ad said, 'Person Friday required for general office duties'.

Name	Pronounced	Usage
Bristol	BRIS-təl	English (Rare)
Nicolette	[.nikə'let]
Natanail	-	Bulgarian, Macedonian
VÜSala	-	Azerbaijani
Reba	['ri:bə]
Tal'at	-	Arabic