said of someone who has a turned head, a twisted neck
IPAspelling:
ketʃnekwiltik
Alonso de Molina:
quechnecuiltic. deceruigado, que trae tuerta la cabeza, y tiene enuarado el pescuezo. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 88v. col. 1. Thanks to Joe Campbell for providing the transcription.