The current xkcd deals with the psycholinguistic properties of expletive infixation: For a fuller discussion of the issues, see: James McCawley, "Where you can shove infixes", in Alan Bell and Joan Hooper, Eds., Syllables and Segments, 1978. James McMillan, "Infixing and Interposing in English", American Speech 1980. John McCarthy, "Prosodic Structure and Expletive Infixation", Language … Continue reading xkc-infix-d