A spring-loaded mechanical hammer specially adapted to be used in weightlessness (from "space hammer").(noun)
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Use "spammer" in a sentence
"So, the spammer is removed, making me a self-hater."
"AOL will dig for buried platinum and gold in spammer's Mom's yard"
"A spammer is sending out come-ons offering to buy MySpace profiles with more than 20,000 contacts, presumably to send out more spams through MySpace."