百足之虫（百足之蟲）　

◎ 百足之虫，死而不僵 bǎizúzhīchóng,sǐ érbùjiāng

(1) [a centipede does not topple over even when dead]∶百足(马陆)虽然死了,但不僵硬

(2) [the influence of a powerful man lingers after his downfall]∶比喻有钱有势者,根基牢固,虽然失败,也不至立即潦倒没落

古人有言“百足之虫,死而不僵。”如今虽说不似先年那样兴盛,较之平常仕宦人家,到底气象不同。——《红楼梦》