What does Olmec mean?

1. people of the sky dragon
2. those who carve from jade
3. inhabitant of rubber country
4. creator of giant heads

The term "Olmec" refers to option 1: people of the sky dragon. The Olmec civilization, which existed in Mesoamerica from approximately 1200 BCE to 400 BCE, is often associated with the worship of a sky dragon or sky serpent deity.