Green’s Dictionary of Slang

in pl., long, bushy sideburns growing beyond the edge of the chin.

1909

J. Ware Passing Eng. of the Victorian Era 267/1: Wingers – sometimes called Flanges (Colloquial – about 1865). After the Crimean beard, which meant all the hair growable on the face, had lasted. in fashion about ten or twelve years, the chin came to be once more shown, and the whiskers were thrown back, or pulled away from the cheeks, and allowed to grow as long as nature decided. The name was obtained from their streaming and waving character.