love rat
不忠誠的伴侶或情人，常常背叛他人的感情關系
口語·形容不忠或欺騙伴侶的人
英文釋義
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!
典故來源
源自英國俚語，'rat'比喻背叛者，'love'指情感關系中的不忠。