under hat

under (one's) hat

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

Name	Pronounced	Usage
Franzi	FRAHN-tsee	German
Brodie	BRO-dee	English (Modern)
Cherry	CHER-ee	English
Undine	-	Literature
Vittorino	-	Italian
AndrÉIa	-	Portuguese (Brazilian)