to say thanks in order to make people laugh (see Molina)
Orthographic Variants:
xuchuia
Alonso de Molina:
xuchuia. nite. dezir gracias para hazer reyr. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 162r. col. 1. Thanks to Joe Campbell for providing the transcription.