1An English word which has been given a Spanish form or pronunciation; a form of slang used by speakers of Mexican Spanish and others along the border with the United States, consisting of such words. Cf Spanglish.
2Depreciative. Excessive admiration in an Hispanic (originally a Mexican) American for the culture of the United States.
Origin
1940s; earliest use found in The New York Herald Tribune. From Mexican Spanish pochismo from pocho + -ismo.