Who's Gone?

Robo who, Robo gone, Robo what, Robo one Robo where, Robo never, Robo why, Robo clever Robo hi, Robo ho in the sky, Robo no Robo who, Robo gone, Robo what, Robo one Robo where, Robo never, Robo why, Robo clever Robo hi, Robo ho in the sky, Robo no Waiting for the Robo I'm a universal hobo I'm a skinny little creature Will he turn into a feature Only visiting the planet That I'm pushing to a circle Only Robo makes me rub it all (?) The walls where it begun (?) Visiting your planet For a few thousand days Nothing to hide No reason to stay Breathless at the end of my run It all ends where it begun Robo who, Robo gone, Robo what, Robo one Robo where, Robo never, Robo why, Robo clever Robo hi, Robo ho in the sky, Robo no Robo who, Robo gone, Robo what, Robo one Robo where, Robo never Waiting for the Robo I'm a universal hobo I'm a skinny little creature Will he turn into a feature Only visiting the planet That I'm pushing to a circle Only Robo makes me rub it all (?) The walls where it begun (?) Visiting your planet For a few thousand days Whatever makes me run? Has anybody ever seen the end? Here is where it begun Visiting your planet For a few thousand days Nothing to hide No reason to stay Breathless at the end of my run It all ends where it begun