How about the chanting at the ending of the Beatle's "I Am the Walrus"? I know the Beatles claim they're chanting "rasberry jam" or some such, but when I listen to it on a high resolution system it sounds like they're chanting "Get f***ed, Get f***d, Everybody get f***ed" over and over in various pitch shifted voices.
Maybe I just have a dirty mind....Of course this record came out when they were a tad disenchanted with each other and their fans....
I bet they got a lot of chuckles out of secretly telling everybody how they really felt.