I have a tattoo on the small of my back. It's a black tribal design with a heart in the middle and a butterfly on each side so it's all symmetrical.
As for meaning, I decided I was going to get one after I spent a whole concert drooling over the lead singer (I was about 5 inches away). He took off his shirt, I saw a tattoo and decided I was going to get one. I'd always wanted one, but his was really cool looking and it was the shove I needed to actually do it. I saw the design on a temporary tattoo at Claire's of all places. I wanted a black tribal design but couldn't find any that were feminine at all, and that was the first one I found that I thought was cute. If I had a digital camera, I'd post a pic, but I don't want to waste a roll of film and end up with 15 pictures of my butt.
And for all the people who asked...yes, the small of your back is a fairly painful place to get a tattoo. Anywhere that has only a thin layer between your skin and the bone underneath it will hurt a little more. So when the needle's right on top of your spine, yeah, it hurts. But depending on placement, that can be a bony area in general, so mine also really hurt the further away the lines were dragged from the center. But if it's what you want, it's tolerable.
I'm not sure if this is true, but I've heard black ones are more painful because they have to go deeper and use more ink to try to keep the color from fading. Does anyone know if there's any truth to this?