Oops! Sorry, you're right: "Catmud Feyca," "coaf sicmu," and "lorfoak" are what I should have put. Verlan apparently only needs one inversion at a time: the syllables in multi-syllable words, or the phonemes in one-syllable ones:
- Cool tau, there's wunsum denhid around the nercor!

The original back slang appeared to be based more on spelling than sound, a whole word at a time, so "Takdum Efac" or "Eyfack," "klof kisoom," and "erolclof" (rather than the phonetic "rawlkoaf") would be likely backslang for Mudcat Cafe, folk music, and folklore.
- Cool tour, there's nammas nedditch around the renrock!

I haven't seen a name for the compound back slang I used in the post above, among the language games I've seen lately.