A "Poon Pioneer" is someone who explores unchartered virgin waters, deflowers and leaves his "mark" behind.
Mike: *breaks hymen*
Hannah: "You sure are a really experienced poon pioneer, aren't you?"
Mike: "Mazel tov baby!"
Hannah: "You sure are a really experienced poon pioneer, aren't you?"
Mike: "Mazel tov baby!"
by worms4lyfez April 2, 2011
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