1. The state of having prolonged uncontrollable laughter, often associated with random actions.
Comedy Central has been known to put Josh into a state of hilaria, where after we turn off the TV, he laughs at the clock for at least 30 minutes.
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1. An object or idea that puts one in a state of hilaria.
Tym Zero: Why do rednecks like butt sex?
Hikaru Zero 256: dunno
Tym Zero: because they can watch nascar at the same time
Hikaru Zero 256: haha ... that's a good hilarium
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