something harsh and unpleasant for the palate, bad tasting (see Molina)
Orthographic Variants:
tetozcauauazo
Alonso de Molina:
tetozcauauazo. cosa aspera al paladar. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 110v. col. 2. Thanks to Joe Campbell for providing the transcription.