a lip plug (literally, lip stone) Justyna Olko, Turquoise Diadems and Staffs of Office: Elite Costume and Insignia of Power in Aztec and Early Colonial Mexico (Warsaw: Polish Society for Latin American Studies and Centre for Studies on the Classical Tradition, University of Warsaw, 2005), 172.
Might be made of green stone, turquoise, shells, obsidian, coral, gold, etc. (see attestations)
# Nic. Una persona talla un machete, un arado, o cuchillo con un afilador para que corte. “Eduardo afila su machete porque le ordenan que valle a chapolear”.