Top Definition
A person with extreme penile addiction, requiring immediate rehab, or else his stomach will explode from alarming amounts of cum.
Everyone, keep yer pants zipped tight! I suspect a B-mark in our proximity.
by Reverend Apu January 23, 2008
9 Words related to b-mark
Someone who loves cock and balls so much, he would do anything to get at it.
My math teacher is such a B-Mark!
by Uskaherfed Belemonte January 20, 2008

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