It's the way you sing 'em !

Even without double intendre and inuendo, it is quite possible to change the meaning of a song by the way you sing it.

I was once in a production of "The Mikado" which demonstrated this. The lady playiny the part of Katisha although of the tall and slim build usually associated with the part did have quite a well-formed bust. The costume which she was supplied with, rather than hiding this, tended to accentuate it, giving her a rather spectacular cleavage. The actor playing Ko-Ko took advantage of this in the song in which he courts her (to prevent himself being beheaded). "Tit-Willow" was given a completely new meaning, and phrases such as "Plunged himself into" and "I feel just as sure" were delivered with rather different guestures than normal. Every night of the show, the audience were in helpless laughter at this rather unorthodox rendition of this normally rather sad song.