An awesome sport where you stack cups up and down in a particular way. Only done by awesome people that have awesome speed, awesome hand eye co-ordination, and most of the time no life. The less of a life you have, the better you are.
People that can't do sport stacking just dis the people that can because they're jealous and claim they sped the video up.
Somebody that does sport stacking is called a "Stacker"
Stacker: My record in sport stacking is under 7 seconds!
Jealous guy: Yeah right, prove it
Stacker: Sure (does it in under 7 seconds)
Jealous guy: ...you sped it up.