Flathead in Tagalog

What is the translation of word Flathead in Tagalog/Filipino ?

Meaning of Flathead in Tagalog is : lubalob

a member of certain North American Indian peoples such as the Chinook, Choctaw, and Salish, named from their supposed practice of flattening their children's heads artificially.
a foolish person.
an edible tropical marine fish that has a pointed flattened head with the eyes positioned on the top, typically burrowing in the seabed with just the eyes showing.
(of an engine) having the valves and spark plugs in the cylinder block rather than the cylinder head, which is essentially a flat plate.

By the mid-nineteenth century, they had pushed their enemies, particularly the Shoshone, Flathead , and Kootenai, west across the Rocky Mountains.