a mocking, a deception; or, a weight gain (?) (see Molina)
Orthographic Variants:
teca necayaualiztli
Alonso de Molina:
teca necayaualiztli. burla, engaño, o escarnecimiento. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 91v. col. 2. Thanks to Joe Campbell for providing the transcription.