piepie /paɪ/ ●●● noun 1 [countable, uncountable] a food usually made with fruit baked inside a covering of pastry: a piece/slice of apple pie2as easy as pie informal very easy3a piece/share/slice of the pie informal a share of something such as money or profit: Landers wants a bigger slice of the pie.4pie in the sky informal a good plan or promise that you do not think will happen: The family’s hopes for a cure are just pie in the sky.