talk through one’s hat

in. to say baseless things; to speak carelessly and tell lies. You don’t know what you are talking about. You’re just talking through your hat.

Name	Pronounced	Usage
Shani (1)	-	Hebrew
Jacob	JAY-kəb (English), YAH-kawp (Dutch)	English, Dutch, Swedish, Norwegian, Danish, Jewish, Biblical
Inzhu	-	Kazakh
Naseem	nah-SEEM (Arabic)	Arabic, Urdu
Ekua	-	Western African, Akan
Gorman	['gɔ:mən]