one who experiencing a certain type of annoyance (see Molina)
Orthographic Variants:
quacecepocac
Alonso de Molina:
quacecepocac. el que tiene grima assi. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 84r. col. 1. Thanks to Joe Campbell for providing the transcription.