watch one's tongue

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

1. Synonym of watch one's mouth
   • 1997 February 1, Walter Goodman, “The Role of Partisans in a Neutral Business”, in The New York Times‎, →ISSN:

     Mr. Will, whose inkhornisms remain a weekly treat, has had tough words for former White Housers who write tell-all books, so the younger George had better watch his tongue.