It's only about six years ago that I started to eat raw fish. I had one of those aversions like most naive eaters have when it comes to sushi. My conversion took place when I tried some fancy rolls. I still don't care much for just a piece of raw fish on a bit of rice, but I do like rolls that have a bunch of ingredients that add interesting flavors and textures. 

Eventually I ventured a little further and tried sea steak specials and finally poke. Poke means slices or cuts. As a menu item, it means raw fish that has been cubed or sliced and tossed with a few ingredients, typically onions, soy sauce, and sesame oil. I am now a poke (and ceviche) convert.