Top Definition
a preoperative transsexual
Judy is a pre-op, she's scheduled for surgery next month.
by TBonz August 19, 2003
1 more definition
Someone who is new to Repo! The Genetic Opera and its accompanying cast.(Mainly used by shadow cast groups)

Similar to the idea of "virgins" at Rocky Horror Picture Show screenings.
Person 1: Hey, who's the pre-op?
Person 2: This is Joe. He's never seen Repo! or a shadow cast before
by no-onespecial December 08, 2011

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