hypergelast/ˌhaɪpəɹd͡ʒəˈlæst/EtymologyFrom Ancient Greek ὑπέρ (hupér, “over”) + γελαστής (gelastḗs, “laughter”), from γελάω (geláō, “I laugh”).hypergelast means Someone who laughs excessively. Lexicurio rates it Rare gem — a strength score of 82 out of 100.nounSomeone who laughs excessively.“America had become a laughing nation, a country of frivolists and hypergelasts, a culture dangerously out of control.”