It's the Japanese name for certain species of puffer fish that contain lethal poison but can be eaten as a delicacy
[DOC] [TLE] Pufferfish, Pufferfish Pictures, Pufferfish Facts - National Geographic [PAR] Learn all you wanted to know about pufferfish with pictures, videos, photos, facts, 
... To humans, tetrodotoxin is deadly, up to 1,200 times more poisonous than 
cyanide.