The word "delapp" is not a commonly used term, but it refers to a part of a horse's anatomy. Its correct spelling is "dewlap", which is pronounced /ˈdjuːlæp/. The first syllable is pronounced with a long "u" sound, followed by the "l" sound. The second syllable is pronounced with a short "a" sound and a final "p" sound. The word dewlap refers to the loose skin that hangs beneath the chin or throat of certain animals and can be found on the neck of cattle or the chest of some bird species.