for something to become filled up with dirt (see Molina)
Alonso de Molina:
tlalloa. ni. (pret. onitlalloac.) henchirse algo de tierra. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 124r. col. 2. Thanks to Joe Campbell for providing the transcription.