a gossiper, or someone who talks without thinking (see Molina)
Orthographic Variants:
maquizcoatl chiquimoli
Alonso de Molina:
maquizcoatl. chiquimoli. chismero, o malsin. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 52v. col. 1. Thanks to Joe Campbell for providing the transcription.