You sit down and get the most unique, fun tattoo you can imagine. You planned it out perfectly. Or maybe you didn't, maybe you wandered in and pointed at the art on the wall and said, "That one!" Regardless, at the time, that was the choice you made, and it was bold, beautiful, bad-ass and it made you happy.
Time passes, and people change. Some folks just adjust their opinion on their old tattoos — "Ah," they'll tell their grandkids. "I remember the decision behind this one. Oh my." Others will still feel a bit unsettled: that tattoo no longer represents who they are or how they feel. There's always the option to go to get it lasered off at a removal clinic. But you also have the option to blast over that tattoo with some new art, thereby changing your original tattoo and your body, and hiding the older work behind something fresh.
Blast over tattoos are designs that go right on top of other tattoos, but unlike cover-ups, they don't fully conceal the tattoo underneath. Instead, the new design sits on top of the old one and has some of its ink and colors showing through.
Like a painter layering paint over her old canvas, or a collage artist putting more and more imagery over old magazine images, blast over tattoos use the old with the new to make something entirely original.