dago T n. a ribbed, white cotton tank-style undershirt; a wife-beater; a boy-beater. Editorial Note: A synonym is guinea T, which, like dago T, is often perceived as derogatory or offensive. (source: Double-Tongued Dictionary)
Further reading
Unwrap the name of a candy bar, and you just might find a story inside. For instance, one chewy treat found in many a checkout lane is named after a family’s beloved horse. And: 50 years ago in the United States, some Latino elementary...
In Japan, if you want to order a corndog, you ask for an Amerikan doggu (アメリカンドッグ). These types of coinages are called wasei-eigo, or “Japanese-made English,” and there are lots of them. Plus, there’s an atmospheric optical...
Found a new instance to add to definition, used as ‘obscene slang’ against a Mr.E :
“That’s what E is—a DAGO!”
He nodded like a man who gives a last tap to a nail, and I could see he considered his remark well and truly laid.
~ H.G.Wells in Tono-Bungay, 1909