Not perhaps a rhyme, Sweeney & Sister; but an assonance - or, as we say over this side, arse-onance: because over there 'fanny' means arse - I mean ass - instead of the word I got so castigated 4 calling 1 of u-guise - doesn't it??? -

Oh bum: or arse; or ass --- I'm getting confused. Think I'll go back 2 bed...