to be obstinate and persevere in wrongdoing; or, to become crazy and foolish (see Molina)
Alonso de Molina:
tlatlacamiccati. ni. (pret. onitlatlacamiccatic.) obstinarse y perseuerar enel mal, o tornarse loco y desatinado. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 136v. col. 2. Thanks to Joe Campbell for providing the transcription.