potty mouth
说话粗俗或下流
口语·指责说话粗俗
英文释义
a person who frequently uses vulgar, obscene, or profane language
例句
Watch your language, you've got a real potty mouth today.
典故来源
源自20世纪美国俚语，'potty' 指便盆，'mouth' 指嘴，比喻说话像从便盆里出来一样粗俗。