Troglodyte

A troglodyte, in the general pop culture understanding of the term, is a nasty, vicious, twisted, stunted little monster, usually dwelling underground.

In Dungeons & Dragons and Pathfinder, the term is used a little... differently. Troglodytes are a subrace of Lizardfolk that dwell in the Underdark, and worship their own Demon Prince, making them usually Chaotic Evil cannibals - much like lizardfolk under the reign of a Lizard King. Really, the only major difference between the races is that troglodytes stink.

No, seriously; troglodytes are infamous for powerful musk glands that give them a distinctly overwhelming and foul odor. You can tell TSR was prone to scraping the creativity barrel, huh?

Despite this, troglodytes did get a more nuanced appearance in Dragon Magazine #265, where they were one of the seven "Primitive PCs" for AD&D.