How many times have you been sitting in your bath and wished Christina Aguilera would appear? Well sadly this is a lamp, not a bottle. So that's not going to happen - but give it a rub anyway! who knows, a genie might pop out and grant your wish! (as long as your wish is to be very clean) soap in the shape of a genie's lamp.
If you rub a Genie's lamp he will appear and grant you three wishes, similar things happen when you rub the Wishy Washy lamp shaped soap, and we use the word similar, quite wrongly. But at least you'll be clean.