Breadcrumb Home > Dictionary > Index W wetback: Meaning and Definition of Find definitions for: wet•back Pronunciation: (wet'bak"), [key] — n. Disparaging and Offensive. a Mexican laborer who enters the U.S. illegally, as by wading the Rio Grande. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: wetback (Thesaurus) wet wet bar TrendingHere are the facts and trivia that people are buzzing about. Hanukkah Origins of the Christmas Holiday Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 Krampus: The Christmas Devil Kwanzaa ✖ Related Content Daily Word Quiz: anomie Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language