1 definition by Stanley484

Top Definition
A result in a Football (Soccer) match which sees a distinctly better team lose to one that is in a lower division. This applies only to knockout competitions, and in particular, The FA Cup.
The word was invented on January 5th 2008 by BBC Sports Correspondent Caroline Cheese, and introduced to the 606 community.
I can't believe Chasetown are beating Cardiff! We might see a cupset here!
by Stanley484 January 05, 2008

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