A more likely source of the term "poop deck" is the latin work "puppis", which means the stern. It sometimes is used to mean the whole ship, which is about like calling the ocean "the deep" -- which Romans did, too, "altus".

When a relative of mine was a cute but witheringly rude 3-year-old, a lady came up and clucked and cooed over her in a store where the child's mother was shopping. She (the kid) answered back, "I don't talk babytalk, stupid."