Mushroom willy

General made up insult. If someone was to call it you, they would be saying that you are an oddly shaped penis. This is more of an insult that you would call your mates.

Friend 1: "Don't you think that mushroom and willy are weird words?"
Friend 2: "yeah if you say so"
Friend 1: "like omg we should totally call each other a mushroom willy"
Friend 2: "ok, if you want"
Friend 1: "totes amazeballs"