Definition of keep a civil tongue in one's head in English:

keep a civil tongue in one's head

Speak politely.
More example sentences
  • I don't care if the other countries do it - you're not living in another country, you're living in this one, and as long as you do I'll expect you to keep a civil tongue in your head.
  • Please sir, keep a civil tongue in your head and behave like a gentleman.
  • When he's ready to keep a civil tongue in his head and email me an apology, he's welcome back.
See parent entry: tongue

Definition of keep a civil tongue in one's head in:

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Word of the day keek
Pronunciation: kiːk
verb
peep surreptitiously