mumblefucker

Definition

Slang

  • noun an irritatingly clumsy, inept or fastidious person. A term heard in the early 1970s. There have been other invented terms, with a similar lack of meaning, playing on the comical overtones of the syllables employed; fucknuckle is an example.
http://www.dictionarycentral.com/definition/mumblefucker.html