moch nicnocaccayetoca.

Headword: 
moch nicnocaccayetoca.
Principal English Translation: 

to presume what one knows and to believe one understands it all (see Molina, who gives this example in the first person singular present tense)

Orthographic Variants: 
much nicnocaccayetoca
Alonso de Molina: 

much nicnocaccayetoca. much onicnocaccayetocac. presumir que lo sabe y entiende todo.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 061v. col. 1. Thanks to Joe Campbell for providing the transcription.