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1.
the spam javelin of one who likes to nail commoners
'you think that's impressive? you should see my slag hammer'
by das jon July 30, 2006
 
2.
male genetalia,the penis.used to pound a slags fanny.
hence slaghammer
i was in a club and took this girl down the back alley and gave her a rodding with my slaghammer.
by john boy oliver June 22, 2008