There are a couple of good reasons why a young fellow might be known as "Johnny Laptop."
The first, obvious one, is that the fellow's name is "Johnny" (maybe Jon, Jonny, John, etc.). But the Laptop thing might be problematic.
Maybe it's because he's always seen fiddling around with a laptop PC while working on the Kucinich campaign.
Maybe it's because he's known among a few people on the Kucinich campaign to have an interesting penchant for lap-dancers.
Either way, it's enough to make a girl wonder. More later.