CHICAGO (CBS) — “Jagoff” is now Oxford English Dictionary official.

The “definitive record of the English language” this month added it to its list of new entries.

(chiefly in western Pennsylvania) a stupid, irritating, or contemptible person.

It’s about time, you jagoffs.

As noted, the word appears to have originated in the United States in Western Pennsylvania, but has been used by Chicagoans for as long as anybody can remember.

Did western Pennsylvania native Mike Ditka bring it here in the 1960s?

Probably not, as the word has origins in England, according the Lumpen Magazine, which has published a highly readable “Field Guide To Chicago Jagoffs.”

The Guide honors individual jagoffs, like John Kass, Bruce Rauner, Ronnie ‘Woo Woo’ Wickers and a few more. Oh, of course, Mayor Rahm makes the cut.

For the less famous, the guide also defines types of jagoffs:

Bike Ninja Jagoff: “This particular brand of Jagoff often congregates in massive groups known as Critical Mass.”

My Chicago Jagoff: “This individual can be of any race, ethnicity, class, or gender, and is defined by the perpetual insistence that his or her neighborhood is the authentic Chicago.”

Slow-Walking Cell Phone on Metro Platform Jagoff:
“Taking the Metra into the city ain’t half bad, but it doesn’t matter whether your train is pulling into Ogilvie, Union Station, or LaSalle Street, you will always find this little jag blocking you whenever you’re in a hurry.”