The Graboid is a fictional species of sandworm that acts as the main antagonist of the Tremors franchise. The creature made its debut in the 1990 film Tremors (although the name "Graboid" was only mentioned briefly), and reappeared in its five sequels and the Tremors television series.
The Graboid was named by Walter Chang (Victor Wong), a store owner who later gets eaten by one in his own store. The only other person in the first film to use the term "Graboid" is Val McKee (Kevin Bacon). In the second movie Earl Bassett (Fred Ward) recalls the name "Graboid". The creature is similar to the legendary Mongolian death worm. According to UGO.com, "Graboids are to the desert what sharks are to the ocean".
A graboid lives here. Watch yourself! Cache contains a logbook only.