something abhorrent, a loathsome thing (see Molina)
Orthographic Variants:
tlayelittaloni
Alonso de Molina:
tlaelittaloni. aborrecible cosa. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 120r. col. 2. Thanks to Joe Campbell for providing the transcription.