When I was little and i had no clothes on (e.g. after a bath), my mum used to say i was 'like venus on a rock bun'.
'you'd be no good as a window' (usually standing in front of the telly)
as someone previously mentioned, i remember 'up the dancers' for up the stairs
If i asked where someone had gone, mum would say "she's ran away with a black man" ...i always thought it sounded very exotic!