mutt

A mongrel dog (or sometimes cat); an animal of mixed breed or uncertain origin.

Mr. Beerbelly, Beerbelly / Get these mutts away from me / You know, I don't find this stuff amusing anymore

A person of mixed racial or ethnic ancestry.

Soon, we will no longer be an outpost of Europe, but a nation of mutts, a nation with hundreds of fluid ethnicities from around the world, intermarrying and intermingling. Americans of European descent are already a minority among 5-year-olds.

An idiot, a stupid person.

“I knew you weren’t such a mutt as you looked,” she cried.

Mother fuckin' mutt! You, you fucking piece of shit!

A person from the United States, in reference to sense 2.

The snowy sheathbill.

Alternative form of matha.