Ж35
ХВАТАТЬСЯ (ДЕРЖАТЬСЯ) ЗА ЖИВОТЫ (ЗА ЖИВОТИКИ, ЗА ЖИВОТ, ЗА БОКА)
collVPsubj:
human,
usu. pi) to shake with laughter, laugh profusely: Х-ы хватались за животы - Xs (nearly (almost)) sp
lit (burst) their sides laughingXs were in stitchesXs roared with laughterXs held their sides.