"Willy" is a term used in
polite conversation instead of "penis". It is also a term used by kids.
The word, Willy, implies the penis in a flaccid state unless it is explicitly stated otherwise. By using the term "willy" it desexualises the male member and allows one to talk about cocks while your mother, wife, or grandmother is listening. Anyone older than this will need to be reminded what a willy is. Women use the term in front of males because they dont want to seem slutty by calling it a
stonker, a
beaver basher, or a tool.