Keep It Simple Stupid. Keep It Simple SexyKeep. It Simple Stud. Keep It Simple Shitty. Keep It Simple Shithole. Keep It Simple Sally. Keep It Simple Sarah. Keep It Simple Simon. Keep It Simple Slut.
It stands for "Keep It Simple Silly-Pants"
A strategy to use when you want to create something that is going to take a long time if you were to make it complex, so you keep it simple, silly pants.