someone who has many vices and of low energy, self destroys their own credibility/reputation (see Molina)
Orthographic Variants:
mauilquixtiqui
Alonso de Molina:
mauilquixtiqui. vicioso y apocado, que disfama y apoca asi mesmo o aceuilado. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 54r. col. 2. Thanks to Joe Campbell for providing the transcription.