School children of a certain age liked to use the word spastic or more commonly spaz as a term of abuse for other children. The Spastic Society, a UK charity, became aware of this and changed their name to Scope. A scopey is hence a byword for spaz.

when you're hungover as shit after a spending a night drunk as a skunk

Someone who lurks in the shadows of facebook knowing everything being said, and also popping a frosty if you happen to talk to a girl.

A word equestrians use to define a horse that has a nice looking jump.