gavacho, n. — Green’s Dictionary of Slang

gavacho n.

also gavo

[Sp. gabacho, a derog. term for a French person or foreigner]

(US Hisp.) a white person; also attrib.

1969		in Current Sl. IV:3–4 (1970).
1992		Bentley & Corbett Prison Sl. 55: Gavacho A white person.
1995		R. Ramos ‘An Ethnographic Study of Heroin Abuse by Mexican Americans in San Antonio, Texas’ on Texas Commission on Alcohol and Drug Abuse 🌐 ‘Appendix A: Gloss. of Tecato Argot’ Gavacho – Anglo.
1998		Austin American-Statesman (TX) 14 Oct. 9/4: Texas Prison Gangs Slang [...] Gavos: Nickname of Hispanic gangs for white convicts.
1997		E. Little Another Day in Paradise 171: Rat bastard punk [...] I’ll kill your Paddy gavacho ass.