stretcher of something stretched, or one who strips the bark off of green sticks or twigs, or peels of fruits (see Molina)
Alonso de Molina:
tlacoyauhqui. ensanchador de cosa estrecha, o descortezador de varas verdes, o de frutas. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 118v. col. 1. Thanks to Joe Campbell for providing the transcription.