Pop out cake

A pop out cake, popout cake, jump out cake, or surprise cake is a large object made to serve as a surprise for a celebratory occasion. Externally, such a construction appears to be an oversized cake, and sometimes actually is, at least in part. However, the construction is usually cardboard. The inside of the object has a space for someone, traditionally an attractive young woman, to crouch and hide until the moment of surprise, when she then stands up and comes out of the cake.