Santo Domingo Coatlán Zapotec
Coatlán Zapotec is a Zapotec language spoken in southern Oaxaca, Mexico. It uses linguolabial sounds as onomatopoeia.
It is also known as San Miguel Zapotec and Zapoteco de Santa María Coatlán, to distinguish it from Zapoteco de San Vicente Coatlán. It is the only language that uses the linguolabial click. However, it is only used for onomatopoeias.