a farm laborer, apparently whether a live-in farm hand or a day laborer (see Molina; Engl. transl. here by SW)
IPAspelling:
tɬɑːlkoːloːtɬ
Alonso de Molina:
tlalcolotl. gañan o labrador. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 123v. col. 2. Thanks to Joe Campbell for providing the transcription.