The Collaborative International Dictionary of English v.0.48:
Whinger \Whing"er\, n. [See Whinyard.] A kind of hanger or sword used as a knife at meals and as a weapon. [Scot. & Prov. Eng.] [1913 Webster] The chief acknowledged that he had corrected her with his whinger. --Sir W. Scott. [1913 Webster]