flapping

Adjective

 * 1) that flaps or flap

Noun

 * 1) An instance where one flaps.
 * 2)  A phonological process found in many dialects of English, especially American English and Canadian English, by which intervocalic  and  surface as the alveolar flap  before an unstressed syllable, so that words such as "metal" and "medal" are pronounced similarly or identically.
 * 3)  The situation where a resource, a network destination, etc., is advertised as being available and then unavailable (or available by different routes) in rapid succession.
 * 4)  The unlicensed racing of horses or greyhounds.