プログレッシブ和英中辞典(第4版)の解説
ほうふくぜっとう【抱腹絶倒】
彼の話があまりおかしくてみんなが抱腹絶倒した
His story was so funny that we 「were all in convulsions [all nearly split our sides laughing].
猿の珍芸に観衆は抱腹絶倒した
The spectators were all 「in fits of [thrown into convulsions of] laughter at the funny tricks of the monkey.