If the theory turns out to be right, that will be tremendously thick and tasty icing on the cake.

Stories aren't the icing on the cake; they are the cake!

Wow, this is the icing on the cake.

The hurricanes put the icing on the cake.

We've had such a tremendous year and we want to put some icing on that cake.

The A-list celebrities were always going to be the icing on the cake. It's always been more of an ensemble piece.