flapping

1. (countable, uncountable)An instance where one, or something, flaps.

2. (countable, uncountable)A phonological process found in many dialects of English, especially American English and Canadian English, by which intervocalic /t/ and /d/ surface as the alveolar flap [ɾ] before an unstressed syllable, so that words such as "metal" and "medal" are pronounced similarly or identically.

3. (countable, uncountable)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. (uncountable)The unlicensed racing of horses or greyhounds.

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