dog Latin

mongrel or spurious Latin.

a jargon imitating Latin.

Origin of dog Latin

First recorded in 1760–70

It is a mock-heroic tale, in dog-Latin, of a country feud on the Fifeshire lands of his old friends the Cunninghams.

Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 7 |Various
Their Latin was grammatical, but very like dog-Latin for all that.

The Atlantic Monthly, Volume 17, No. 104, June, 1866 |Various
Fifty-two volumes in folio, of the acta sanctorum, in dog-Latin, would be a formidable enterprise to the most laborious German.

Memoir, Correspondence, And Miscellanies, From The Papers Of Thomas Jefferson |Thomas Jefferson
It was perhaps from this, or some similar occurrence, that this barbarous Latin gained the name of dog-Latin.

A History of Caricature and Grotesque |Thomas Wright

It was then in a choking voice that Cephas delivered Mr. Sanders's message, using the dog-latin which they both knew so well.

Gabriel Tolliver |Joel Chandler Harris

dog Latin

spurious or incorrect Latin