The spelling of "Mexican tiger" follows the conventional system of English spelling. In IPA phonetic transcription, it is spelled as /ˈmɛksɪkən ˈtaɪɡər/. The first syllable "Mex" is pronounced with a short "e" sound followed by "ks" and a stress on the second syllable "i". The second word "can" is pronounced with a short "a" sound, while "tiger" is pronounced with a long "i" sound followed by "ger". When written out, the word is easy to recognize and pronounce for native English speakers.
The term "Mexican tiger" is not widely recognized as an established term in linguistics or etymology. It is possible that this phrase may refer to a specific concept or context that is not widely known or popularly used. Without further information or context, it is challenging to determine the origin or etymology of this specific term.