dung beetle /ˈdʌŋ biːtəl/ noun2 •Any of the beetle of the family Scarabaeidae (scarab beetles), especially of the subfamilies Scarabaeinae and Aphodiinae, noted for rolling dung into balls for use as food or as brooding chambers."They went in together. His was accepted and mine rejected. The title of his paper was 'The Reproductive System of the Dung-Beetle'." There was a general laugh. — 1925 •Any of the true dung beetles of subfamily Scarabaeinae. formsdung beetles · dung-beetles