Longman Dictionary English From Longman Dictionary of Contemporary EnglishRelated topics: MusicTex-MexTex-Mex /ˈteks meks/ adjective [only before noun] informal APMrelating to the music, cooking etc of Mexican-American people a Tex-Mex restaurantOrigin Tex-Mex (1900-2000) Texan-Mexican ldoceonline.com