Beer and skittles means all fun and pleasure, and everything in the sentence is described as being carefree and enjoyable.
Consider the statement "And in the meantime, roger and bree get back their cabin, lizzie and her father stop sleeping in the surgery, and everything is carefree and enjoyable!". Is the statement "And in the meantime, roger and bree get back their cabin, lizzie and her father stop sleeping in the surgery, and everything is beer and skittles!" false? Yes/no/unknown