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A fictional disease attributed to bitchy girls as an attempt to explain why they are the way they are.

Commonly abbreviated as SUCS.
Bitchy girl:
"I'm going to act like hot shit even though I'm not very attractive, then I'm going to get drunk and be a complete cunt to everyone that isn't a hot guy."

"Looks like she's got Stuck Up Cunt Syndrome."
by The Coolest Amber Ever January 07, 2008