The tune used to be 'La donna e mobile' when I heard this bellowed out as a rugby song in the sixties, but for all I know it might also have been sung to Ta Ra Ra Boom De Ay. The words I heard were:-
Aresholes are cheap today, Cheaper than yesterday. Little boys are half-a-crown, Standing up or lying down. Bigger ones are three-and-six. They can take much bigger p***** And in the action Give more satisfaction.
Dreadful song isn't it? But as students then we all thought it was tremendously funny!