Tongue splitting was once a random phenomenon in the body modification scene, but has recently come into vogue. The latest Expand Magazine documents a cutting procedure in detail. In the accompanying article, the writer says that today's body modification experts have far more experience than those in the past, making the tongue-splitting process a far safer one.
Within the past few weeks, a guy at our company got a split tongue. During those first few days, his appearance really shocked some of us. His two tongues look just like those in the images above--there's no way his tongue will ever be able to go back to the way it was before!