watch one's language

Verb

watch one's language (third-person singular simple present watches one's language, present participle watching one's language, simple past and past participle watched one's language)

1. (idiomatic) To be careful about one's speech, in particular the avoidance of foul language.
   • You need to watch your language here. These people are very religious.
   • And I put my hands on her jugs. She goes crazy. She says 'Take your hands off me slimeball!' So I go, 'Rona, watch your language!' And she goes, 'If you wanna have fun with your hands, why don't you pass the time playin' solitaire.'1993, John Lahr, The Manchurian Candidate: A Play [...] From the Novel by Richard Condon, New York, N.Y.: Dramatists Play Service, →ISBN, page 72

   Synonyms:

   watch one's mouth