of or pertaining to aspects of culture that combine Mexican and Texan or southwestern U.S. features, esp. aspects of culture developed in southern Texas based on or influenced by Mexican elements: Tex-Mex cooking; Tex-Mex music.
–noun
2.
a form of Mexican Spanish having elements of English and spoken near the border of Texas and Mexico, esp. Mexican Spanish as spoken in Texas.
a lively, polkalike folk music chiefly of southern Texas and northern Mexico, usually with Spanish lyrics and played on accordion and 12-string guitar, sometimes with fiddle and saxophone.
[teks-meks] 
