flapping

adjective

1. That flaps or flap

   “flapping sails”

noun

1. An instance where one flaps.

2. phonologyA 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. computingtelecommunicationsThe 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.

5. The motion made by flapping up and down

   Similar: flap, flutter, fluttering

verb

Present participle of flap