under hat

under (one's) hat

As a secret or in confidence: Keep this information under your hat.

Name	Pronounced	Usage
Asim (2)	-	Indian, Hindi, Bengali
Jirair	-	Armenian
Faustina	-	Ancient Roman, Italian
Audamar	-	Ancient Germanic
Fox	FAHKS	English (Rare)
Erkin	-	Uyghur