From WordNet (r) 3.0 (2006) :
slammer n 1: a person who closes things violently; "she's a dramatic slammer of doors" 2: 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]