What does Also, I have this cake mean?

Also, I have this cake meaning in Urban Dictionary

A phrase popularized by Paul Saunders of Loading Ready Run in the video clip 3 PS3s. Its made use of after informing somebody everything have actually/have carried out to incorporate insults to injuries. You do not need to produce a cake, only anything delicious (eg cake, as detailed by Morgan vanHumbeck in Computer Envy)