- wallaby, brush kangaroo - any of various small or medium-sized kangaroos often brightly colored
--1 is a kind of kangaroo
--1 has particulars:common wallaby, Macropus agiles; hare wallaby, kangaroo hare; nail-tailed wallaby, nail-tailed kangaroo; rock wallaby, rock kangaroo; pademelon, paddymelon; tree wallaby, tree kangaroo