shoe-string (n.)youdaoicibaDictYouDict[shoe-string 词源字典]
1610s, from shoe (n.) + string (n.). As figurative for "a small amount" it is recorded from 1882; as a type of necktie, from 1903; as a style of cooked potatoes from 1906.[shoe-string etymology, shoe-string origin, 英语词源]