I have named almost every vehicle I've had since my second vehicle. It was a '72 Ford Galaxie that I bought from a friend, he had named her Bertha and it fit so I kept the name.
My vulcan practically named itself, which is how I think it's supposed to happen. I moved up from a 200cc dual sport, and the first time I got the vulcan out on the open road, I looked down and I was going 70. Top speed on the dual sport was ~60, so you can imagine my surprise. I really had to work to keep it around the speed limit, it just seemed to want to go faster and faster. It seemed rowdy, so that's what I call it (Rowdy).
I smile 'cause I don't know what the h*ll is going on.