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.
At the comedown party:
Oh wow until last night I had no idea how small my willy could get after dropping a mountain of pills - thats the first time i had to rummage around looking for it
girls gathering (boyfriend discussion)
I had to ditch him, he had a small willy and he never knew what to do with it. 1 out of two would have been sufficient.
Mom should I go to the doctor, my willy has turned green
thats funny I took a green pen that was leaking out of your trousers that were in the wash