Chompers were small robots built by and for the Blarg. They appeared on a multitude of worlds, including Gaspar, Quartu and Kalebo III. They had large chomping mouths (hence the word chomp), lined with rows of razor sharp teeth. They were perfect for security, as they could be generated (indefinitely in some cases) out a small machine.
They were very similar to the Sandsharks; as they attack, move, and die the same way as the Sandsharks do.