to make something crunchy by toasting it or chewing it loudly (see Karttunen); to toast something (see Molina)
IPAspelling:
totopotsɑ
Alonso de Molina:
totopotza. nitla. (pret. onitlatotopotz.) roer, o tostar algo. 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.
Frances Karttunen:
TOTOPOTZ(A) vt to make something crunchy by toasting it or chewing it loudly / roer o tostar algo (M), lo mastica (haciendo ruido) (T) [(3)Tp.213]. The sense of making or noisily eating crunchy food is at some remove from TOPŌN(I) ‘to make an explosive noise, to thunder, to discharge a firearm’, but this is clearly derivationally related to TOPŌN(I) and TOTOPOCA in morphologically unexceptional way.
TOTOPOCHILIĀ applic. TOTOPOTZ(A).
TOTOPOTZALŌ nonact. TOTOPOTZ(A). Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 249.