Resembling a lemming or some aspect of one, especially a propensity to follow blindly after a leader.
A small Arctic and Subarctic rodent from any of six genera of similar rodents.
(figuratively) Any member of a group given to conformity or groupthink, especially a group poised to follow a leader off a cliff.
Any one of several species of small arctic rodents of the genera Myodes and Cuniculus, resembling the meadow mice in form. They are found in both hemispheres.
any of various short-tailed furry-footed rodents of circumpolar distribution
A lemming is a small rodent, usually found in or near the Arctic in tundra biomes. Lemmings form the subfamily Arvicolinae (also known as Microtinae) together with voles and muskrats, which form part of the superfamily Muroidea, which also includes rats, mice, hamsters, and gerbils.