Westentasche
Westentasche is a German noun meaning the waistcoat pocket. It refers to the small interior pocket inside a waistcoat (vest) that traditionally held items such as a pocket watch, coins, a handkerchief, or small notes. In classic men’s dress, the waistcoat was designed with pockets placed near the chest, and the Westentasche often served as a secure, readily accessible compartment.
In German idiom, the Westentasche is also used figuratively. The expression etwas in der Westentasche haben
Historically, the Westentasche gained prominence when pocket watches were common and waistcoats were standard parts of