A pocket pistol is an American term for any small, pocket-sized semi-automatic pistol or, less-popular, any other handgun (e.g., derringer, or small revolver) of (most commonly) small caliber, suitable for concealed carry in either a front or rear pocket of a pair of trousers, or in an exterior coat pocket. Some consider the term solely applicable...
Found on
http://en.wikipedia.org/wiki/Pocket_pistol
Pocket pistol was old slang for a dram flask.
Found on
http://www.probertencyclopaedia.com/browse/ZP.HTM
No exact match found.
