to become moth-eaten (speaking of clothing) (see Molina)
Orthographic Variants:
metolqualo
Alonso de Molina:
metolqualo. (pret. ometolqualoc) apolillarse la ropa. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 55v. col. 1. Thanks to Joe Campbell for providing the transcription.