one who cries out, a town crier, an auctioneer (see Molina)
IPAspelling:
tsɑhtsɑhtsini
Alonso de Molina:
tzatzatzini. bozinglero, gritador, o pregonero. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 151v. col. 2. Thanks to Joe Campbell for providing the transcription.