Longman Dictionary of Contemporary English - cake

~1 n 1 a soft sweet food made by baking a mixture of flour, fat, sugar and eggs  (a birthday cake | Would you like a slice of chocolate cake?)  (- compare biscuit) 2 fish cake/rice cake etc fish, rice etc that has been formed into a flat round shape and then cooked 3 a small block of something + of  (a cake of soap) 4 be a piece of cake spoken to be very easy  ("How do you do that?" "It's a piece of cake! Watch!") 5 take the cake AmE informal to be worse than anything else you can imagine; take the biscuit BrE  (I've heard some pretty dumb ideas, but that takes the cake!) 6 you can't have your cake and eat it spoken used to tell someone that they cannot have the advantage of something without its disadvantages 7 a slice of the cake a part of the money, help etc that is available for everyone to share  (- see also sell like hot cakes hot cake) ~2 v 1 be caked with/in to be covered with a layer of something thick and hard  (Look at your boots! They're caked with mud.) 2 if a substance cakes, it forms a thick hard layer when it dries