wetback

(wetbak′)

noun

Informal a Mexican agricultural laborer who illegally enters or is brought into the U.S. to work: a term of derision or contempt

Origin: from crossing the border by swimming or wading the Rio Grande

See wetback in American Heritage Dictionary 4

noun
Offensive Slang
Used as a disparaging term for a Mexican, especially a laborer who crosses the U.S. border illegally.

Origin:

Origin: From the fact that the Rio Grande is a common entry point

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