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A common term used around most recently around South Florida but has spread to many other influential areas of the world. It refers to a person who, by law, is considered to be a step-sister; however often times thought of by one (or both parties) to be more of a true sister.
Guy 1: "Dawg why was you all up in that girl's face last nght?"
Guy 2: "it's totally cool bra, that's my stepis... we're like almost related by blood"
by doctorcameltoe October 22, 2010
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