Top Definition
An actor, actress or some other form of entertainer who makes guest apperances on a several television shows during a period of time in which they do not have anything else going on in their career-this usually occurs when one's career has reached a dead end
That Victoria Justice just keeps popping up all over Nicelodeon's other TV shows-she's such a Guest Star Whore
by repoed2 January 24, 2010
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