something dented or deflated (see Molina; Engl. transl. here by Stephanie Wood)
IPAspelling:
pɑːtsiwki
Alonso de Molina:
patziuhqui. cosa abollada, o cosa deshinchada. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 80v. col. 1. Thanks to Joe Campbell for providing the transcription.