IE:"A person who is lacking so much of skill at a sport of hobby they have moved past the level of the trash/cone label" this is mostly used in the ro-sports community.
An athlete who isn't very good at the sport/hobby he/she is playing. Often the player has the athletic ability of an orange street cone.
The coach wouldn't but Chris in the game because he is a "Cone"
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.