for the bread (or the like) to be toasted a great deal (a verb) (see Molina)
IPAspelling:
totopotʃwɑːki
Alonso de Molina:
totopochuaqui. (pret. ototopochuac.) tostarse mucho el pan, o cosa semejante. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 151r. col. 1. Thanks to Joe Campbell for providing the transcription.