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1.
Sphero is the world's most awesome robot ball that you control from your smartphone or tablet. You can even use Sphero as a controller for on-screen and multi-player games to fly spaceships and play tag. Bacon and kitteh lovers and ballers of all shapes and sizes absolutely adore Sphero. Can also be used as a verb such as "Every day I'm Spheroing".
"Sphero is much more than a one-trick gadget."
by BallsofFire September 26, 2012
 
2.
A complete and utter retard. Nothing is more retarded than a sphero.
Ha, he's so retarded he's sphero!
by - May 05, 2005