Unlike the more well known pimp slap, this variation is a bit more degrading and is only used in severe situations. In order to perform this one must first have a penis in hand. Once the penis is in hand it must be swung across the face of the "ho" thus leaving a mushroom shaped marking across the recipients face. Remember this must be done quickly to not only surprise, but to also prevent any cock-block or damage to the "rod of correction."
That bitch got the Boston Pimp Slap and got a mushroom shaped bruise on her forehead.
by G Word July 12, 2006