不胫而走bù jìng ér zǒuspread far and wide;get round fast; go (/go off/sell) like hot cakes;spread (/run) like wildfire
❍ 世界广漠无垠之场。有一大动物焉。不胫以走。不翼以飞。(李六如《六十年的变迁》57) In the extensive and boundless range of this world there exists a large animal which possesses no feet but walks,and has no wings but flies. 不胫而走bù jìnɡ ér zǒu胫：小腿。没有腿但跑得很快。比喻事物不用推广，也能迅速传播。get round fast, speak like wildfire, spread far and wide |