'slammer' definitions:

Definition of 'slammer'

From: WordNet
noun
A person who closes things violently; "she's a dramatic slammer of doors"
noun
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) [syn: jail, jailhouse, gaol, clink, slammer, poky, pokey]