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1.) The exhibition of gross overspending, or abhorrent government excessiveness, always at the cost of and disregard of others.

2.) Acting in the behavior of a Roman emperor (particularly Caligula), enjoying pleasures of food and orgies to a degree of perceived insanity.
Former Speaker of the House Nancy Pelosi's bar tab that the taxpayers picked up was borderline caligulance.
by Cam November March 14, 2015
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