hypergelast
nounUS /ˌhaɪpəɹd͡ʒəˈlæst/
Etymology From Ancient Greek ὑπέρ (hupér, “over”) + γελαστής (gelastḗs, “laughter”), from γελάω (geláō, “I laugh”).
1
Someone who laughs excessively.
- America had become a laughing nation, a country of frivolists and hypergelasts, a culture dangerously out of control.1992, Henry Jenkins, What Made Pistachio Nuts?, Columbia University Press: