biscake Share definition Flag A biscake is a mixture of both a biscuit and a cake. This word has helped solve many disputes. jaffa cakes. not a cake as it lacks the size and not a biscuit as it lacks the texture . therefore it is a biscake biscake by reissavfc October 3, 2009 0 0 Get merch Get the biscake mug. Buy Now — $32.95 See more merch