to be greedy or in need, or to become upset by any little thing (see Molina)
Alonso de Molina:
aninocotontlani. (pret. aoninocotontlan.) ser auariento o escasso, o sentirse luego de qualquier cosa. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 6r. col. 2. Thanks to Joe Campbell for providing the transcription.