love rat
不忠诚的伴侣或情人，常常背叛他人的感情关系
口语·形容不忠或欺骗伴侣的人
英文释义
someone who is unfaithful or deceitful in a romantic relationship
例句
He cheated on his wife with three different women—what a love rat!
典故来源
源自英国俚语，'rat'比喻背叛者，'love'指情感关系中的不忠。