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
Shaked	-	Hebrew
Periklis	-	Greek
IsibÉAl	-	Irish
Hesiod	HES-ee-əd (English), HEE-see-əd (English)	Ancient Greek (Anglicized)
Jacomina	yah-ko-MEE-nah	Dutch
Santo	SAHN-to	Italian