1. [informal] A correctional institution used to detain persons who are in the lawful custody of the government (either accused persons awaiting trial or convicted persons serving a sentence)
   "The old slammer was converted into a museum";
   - jail, jailhouse, gaol [Brit], clink [informal], poky [informal], pokey [informal], prison, calaboose [US, Austral, informal]
    
2. A person who closes things violently
   "she's a dramatic slammer of doors"

Derived forms: slammers

Type of: closer, correctional institution

Encyclopedia: Slammer