This is the Wati Ngintaka Tjukurpa (Perentie Man creation story). Wati tjuta Ngintjari pitjanyi (he is being chased by all the lizard men) from Mintabie.
Wati winki anu (all the men went after him). The Ngintaka man stole their tjiwa (grinding stone) because it made such wonderful food. The men chased the Ngintaka man to Arran where they speared him and cut him open. They found the grinding stone hidden in his tail.