a killer or a destroyer (see Molina), one who slays or slaughters
Alonso de Molina:
tepopoloani. matador o destruidor. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 103r. col. 2. Thanks to Joe Campbell for providing the transcription.