Someone said :
Personally I think its the vilest food in existance and I have given it a chance on more than one occasion. just so gross and the only food I have emptied into my hand after a few chews! Was there no cookers in Japan at one stage? vile *winces face*
From Wikipedia: In Japanese cuisine, sushi is a food made of vinegared rice, usually combined with other ingredients (uncooked and in some cases cooked) such as fish.
Sushi as an English word has come to refer to a complete dish with rice and toppings or fillings; this is the sense used in this article. The original term Japanese: sushi (-zushi in some compounds such as makizushi), written in kanji, means snack and refers to the rice, but not fish or other toppings.
Outside of Japan, sushi is sometimes misunderstood to mean the raw fish by itself, or even any fresh raw-seafood dishes. In Japan, however, sliced raw fish alone is called sashimi and is distinct from sushi.
There are various types of sushi: sushi served rolled inside nori (dried and pressed layer sheets of seaweed or alga) called makizushi or rolls; sushi made with toppings laid with hand-formed clumps of rice called nigirizushi ; toppings stuffed into a small pouch of fried tofu called inarizushi; and toppings served scattered over a bowl of sushi rice called chirashi-zushi ."
Toppings (sitting on a bed of rice) can be either uncooked or cooked fish like salmon, tuna, mackerel or vegetable strips like cucumber or omellete strips while fillings (wrapped in rice and a sheet of nori seaweed)can be cooked or uncooked fish, vegetable strips like carrot, cucumber, etc.; fruit like mango, avocado, etc.. In short, sushi isn't all raw fish!
I love sushi (and japanese food) but even I have my limitations...I ate sushi with a sea urchin topping a while back and I spat it out as quickly as I put it in my mouth - normally nothing escapes my mouth....:-) It was the vilest thing I have ever eaten...VILE VILE VILE VILE!