So I was bored, and ended up trying to explain to an idiot for reason I am not sure of why Peni as plural for Penis wasn’t really an actual word. I typed “etymology of Penis”{small clue to what follows, text only, if you are at work} into Google and found, on page 2, the best sentence I have ever read, in a scientific manner,at the very bottom of the page, that actually had a reference note .
DUCK FUCKER. The man who has the care of the poultry on board a ſhip of war. [“Classical Dictionary of the Vulgar Tongue,” 1796] okay so I unbowdlerized FUCKER, I left the screwy “s” in ship"