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Of or characterized by a blend of Mexican and southwest US cultural elements: Tex-Mex music; Tex-Mex food.
[Tex(as) + Mex(ican).]
(Cookery) of, relating to, or denoting the Texan version of something Mexican, such as music, food, or language
of or denoting aspects of Texan or southwestern U.S. culture originating with or influenced by Mexicans or Mexican-Americans: Tex-Mex cooking.