The Collaborative International Dictionary
Slang-whanger
Slang-whanger \Slang"-whang`er\, n. [Slang + whang to beat.]
One who uses abusive slang; a ranting partisan. [Colloq. or
Humorous]
--W. Irving.
Wiktionary
slang-whanger
n. (context dated colloquial English) One who uses abusive slang; a ranting partisan.