1. (See quot. 1884.)
1870. Holmes, Syst. Surg., III. 693. A slight degree of flat-foot is common in girls, especially amongst those of fine organisation in the upper and middle classes of society.
1884. Syd. Soc. Lex., Flat-foot, a condition of the foot in which the tarsus does not possess, or loses altogether, its usual arch.
2. U.S. slang. (See quot.)
1887. Proctor, Amer., in Knowledge, 1 June, 184/1. An American flat-foot is a man who stands firmly for his party.