"Not a use they promote in the Lurpak or Anchor adverts."
A Clover butter family TV advert from 1989 used the "Roll Me Over In The Clover" song - only slightly modified.
IIRC We used to sing that at the Boy Scout campfires back in the 1950/60s.
Here are the words for anyone who doesn't know them. This version is close to the one I learned - there have been many variations from subtle to explicit.