This mug is shaped like Greedo from the original 1970s Star Wars films. Greedo was a Rodian bounty hunter with a tapir-like snout, bulbous eyes, pea-green skin, and a crest of spines atop his skull.
This mug was paired with a Han Solo mug and sold as a set - recalling the scene where Han shot Greedo while seated in the infamous cantina on Tatooine.