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someone who laughs excessively.

From Ancient Greek ὑπέρ (huper, “over”) + γελαστής (gelastēs, “laugher”), from γελάω (gelaō, “I laugh”).
America had become a laughing nation, a country of frivolists and hypergelasts, a culture dangerously out of control." - Henry Jenkins; What Made Pistachio Nuts?; Columbia University Press; 1992
by Arash.Amiri October 18, 2012
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Jul 1 Word of the Day
sending two texts in a row without a reply inbetween.
Rachel: whats up?
Tessa: not to much! hbu?
Tessa: dude, i'm so bored.
Rachel: stop double texting me.
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