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BMX

BMX
  (biːɛmˈɛks)
  [Abbrev. of bicycle moto-cross.]
  Organized bicycle-racing on a dirt-track, esp. for youngsters. Also, a bicycle used for this or similar activities, esp. one which is robust and highly-manœuvrable. Freq. attrib.

1978 Washington Post 9 Nov. (Maryland Weekly Suppl.) 3/2 When police began chasing the teens off their makeshift race courses, a parents' group known as the Rockville BMX Association was organized to help teenagers find a site for a permanent race course. 1979 Telegraph (Brisbane) 25 Oct. 27/1 That infernal BMX—you know, that dragster-cross bicycle with the technicolor wheels. Ibid. 27/5 Barry was responsible for turning an unused council dump at The Gap into one of Brisbane's best BMX courses. 1981 Sunday Mail Mag. (Brisbane) 8 Feb. 3/1 In the two weeks before Christmas one Brisbane suburban bike shop delivered more than 200 BMX machines to its customers. 1983 Sounds 3 Dec. 6/3 Danny and the Mongoose Team promote the ‘fastest growing youth sport in the country’—BMX bike racing—with a single called ‘BMX Boys’. 1985 Trade Marks Jrnl. 15 May 1144/2 Team BMX{ddd}Registration of this Trade Mark shall give no right to the exclusive use of the letters ‘BMX’{ddd}Pedal cycles adapted for bicycle motocross.

Oxford English Dictionary

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