ˈ ̷ ̷ˌ ̷ ̷ adjective
Etymology: bat (III) + wing
: shaped like the wing or wings of a bat
the batwing doors of a saloon
a batwing collar
as
a. of a necktie : worn in a bowknot and having ends of equal length
a black batwing tie for evening wear
b. of a sleeve : made with a deep armhole
the batwing sleeves of a knitted blouse
c. of chaps : having wide flared sides and snap or buckle fastenings
he picked up the scarred batwing chaps — W.V.T.Clark