possum Definition

opossum

any of various small to medium-sized, nocturnal, chiefly arboreal marsupial mammals (especially families Phalangeridae, Pseudocheiridae, and Petauridae) of Australia and New Guinea that have thick, soft fur, a prehensile tail, and a rounded head with protruding eyes and that are mainly herbivorous

to engage in sport or recreation : frolic

to have sexual relations; especially : to have promiscuous or illicit sexual relations —usually used in the phrase play around

to move aimlessly about : trifle