flop (n.)youdaoicibaDictYouDict[flop 词源字典]
1823, "act of flopping; any action that produces the sound 'flop;' the sound itself," from flop (v.). Figurative sense of "a failure; that which is a failure" is by 1893, from the notion of a sudden break-down or collapse. Extended form flopperoo attested from 1936. The Fosbury flop high-jumping technique (1968) is so called in reference to U.S. athlete Dick Fosbury (b.1947), who used it to win the 1968 Olympic gold medal.[flop etymology, flop origin, 英语词源]
gold (adj.)youdaoicibaDictYouDict
c. 1200, from gold (n.); compare golden. In reference to the color of the metal, it is recorded from c. 1400. Gold rush is attested from 1859, originally in an Australian context. Gold medal as first prize is from 1757. Gold record, a framed, gold phonograph record to commemorate a certain level of sales, is from 1948.
Joe Grady and Ed Hurst, WPEN disk jockey team, will be given a gold record by Mercury of the one-millionth copy of Frankie Lane's waxing of That's My Desire, January 10, for having done so much to plug the platter in these parts [Philadelphia]" [Billboard, Jan. 10, 1948]