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When you grab your dick and squeeze it until the head turns purple, then mercilessly punch the head or with a purple mallet/hammer. This act is usually done intoxicated and was originated by New Hampshire's own Matthew "Bordmatt" Warriner.
Hey what is Bordmatt doing?
Oh he is just over there doing his Purple Hammer thing.
by KatieBanks, Bordmatt August 04, 2013
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