to snatch something from someone with the intention of eating it
IPAspelling:
kɑmpɑtʃilwiɑ
Alonso de Molina:
campachilhuia. nicte. (pret. onictecampachilhui.) arrebatar a otro algo para comer selo. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 12r. col. 2. Thanks to Joe Campbell for providing the transcription.