Cone-ing is when a person orders an ice-cream cone at a drive-thru and when the order is ready accepting the cone from the ice cream end instead of the cone. This will here hereby confuse the drive-thru attendant.
Son: "Dad, can I have a dollar?" Dad: "Why?" Son: "Because I'm bored and want to go cone-ing with my friends." Dad: "Ok, but here's another dollar...save at least one cone for me!"
For more examples just google "cone-ing" there have been many "coners," one who participates in cone-ing, that have created videos!