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Typically a northeast term describing lesbians.
"Boy did you see Lisa and Laurie last night? Those two clam slappers sure can pound buckets of brew."
by Matt Corbinowitz January 26, 2006
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The definition of a Clam Slapper is when two dykes in initiate vaginal rubbing.
An example of a Clam Slapper is any lesbian activity that occurs due to vaginas rubbing, smacking or clapping of any sort.
by Bluntman3456 January 17, 2011
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