げらげら
げらげら 1 (副 )しまりなく大声で笑うさま 。「こっけいなしぐさに ―(と )笑う 」
げらげら ▸ げらげら笑う laugh loudly / roar with laughter, have [⦅古 ⦆ laugh ] a good laugh .▸ 彼の冗談にみんながげらげら笑った His joke made everybody roar with laughter .