When George was working at Kreuger Industrial Smoothing, he ended up with the nickname Koko. Without permission, George hires a woman named Koko, who Jerry's girlfriend knew through the maid service she worked for. George thinks this will rid himself of the nickname. It does this, but gives him a knew nickname: Gammy.
This is a companion discussion topic for the original entry at https://www.stanthecaddy.com/koko/