one who shakes or sifts something; perhaps one who brushes off clothing; the same meaning as tlatzetzeloani (see Molina and other terms starting with tlatzetzel-)
Alonso de Molina:
tlatzetzeloqui. lo mesmo es que tlatzetzeloani. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 142v. col. 2. Thanks to Joe Campbell for providing the transcription.