varmint
noun /ˈvɑːmɪnt/
/ˈvɑːrmɪnt/
(especially North American English, old-fashioned, informal)- a wild animal that causes problems
害兽(尤指狐狸) - a person, especially a child, who causes trouble
惹是生非的人;(尤指)顽童,小淘气
词源mid 16th cent.: alteration of vermin.