He got Ju Ju eyeballs."Sarky" = Sarcastic
And I don't think that Imagine was just Lennon's vision of how life could be, it was a starting point for people to work from if they wanted. After all-many people have taken life on from other peoples visions!
And Lonesome EJ, you said it right.
Long may Lennon shine in the music of the world.
Love and peace
Eric