1) Of or having to do with the Roman Emperor Caligula.
2) The mixing together of food and sex in a similar fashion to that of the Roman Emperor Caligula.
The Jack in the Box commercial that places the clown Jack in a hot tub with his girlfriend and his swinger friends is very caligulic in nature especially when the fast food restaurant's commercial insinuates group sex while advertising the tastiness of Jack's new Sirloin steak burger.
by Abraxas Romante February 12, 2008
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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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