lips are sealed, one's

One will reveal nothing, especially about a secret. For example, You can trust me with the details of the lawsuit-my lips are sealed. [Early 1900s]

Name	Pronounced	Usage
Pomponia	-	Ancient Roman
Mcfadden	[mək'fædən]
Regin	-	Ancient Germanic
Ruy	-	Portuguese, Spanish
Pipaluk	-	Native American, Greenlandic
Svein	-	Norwegian