Potty mouth


A foul mouthed person.

I couldn’t believe that string of swearwords that Jill gave the teacher – she’s a real potty mouth.

USA, mid 20th century.

Worldwide, but not particularly common.

Gary Martin is a writer and researcher on the origins of phrases and the creator of the Phrase Finder website. Over the past 26 years more than 700 million of his pages have been downloaded by readers. He is one of the most popular and trusted sources of information on phrases and idioms.

Gary Martin

Writer and researcher on the origins of phrases and the creator of the Phrase Finder website. Over the past 26 years more than 700 million of his pages have been downloaded by readers. He is one of the most popular and trusted sources of information on phrases and idioms.