1N-COUNT 旅鼠 A lemming is an animal that looks like a large rat with thick fur. Lemmings live in cold northern regions and sometimes travel in very large numbers. 旅鼠
2N-COUNT [usually plural](如旅鼠般)盲目从众者,随大流者 If you say that a large group of people are acting like lemmings, you are critical of them because they all follow each other into an action without thinking about it. (如旅鼠般)盲目从众者,随大流者 [disapproval]
The French crowds pour like lemmings down the motorway to Paris.