Cone-ing by definition is the art of grabbing a ice-cream cone from the ice cream end just to weird out the McDonalds or Dairy Queen Worker. can also be done various other ways such as scooping the ice cream onto you face for warrior paint. Usually cone-ing is performed with soft ice cream so that it creates a bigger mess... also it is usually funnier when two are done at once. Also known as Coning. David, as in the statue of david by michelangelo, knew about cone-ing... I'm fairly certain it was one of his favorite activities.