The Usual

How do you spell the abbreviation of the word "usual"? As in: "I'll have the uzj."

Hey, I said I didn't know how to spell it.

It can't be "us", that's just too confusing. Is there a Z? a J? a G? It rhymes with rouge and luge, so maybe "uge" is the way to go? Maybe it needs a Y to start it off?
Yuge?

All of my questions might lead you to one of your own: Why would you ever need to know how to spell the abbreviated form of usual?

Shut up.