douche bag
noun
1- a small syringe for douching the vagina, especially as a contraceptive measure（尤指避孕用）阴道冲洗器, 灌洗器。
1.1
- N. Amer. informal a loathsome or contemptible person (used as a term of abuse)〈北美, 非正式〉讨厌鬼, 卑鄙家伙。