Arash.Amiri's definitions

Hypergelast

someone who laughs excessively.

Etymology
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