The flesh of the puffer fish, which is considered a delicacy in Japan. However, since puffer fish also store a potent neurotoxin (Tetrodotoxin) in its organs (but not its flesh), if not prepared properly, eating of fugu can lead to death.
"I really want to try fugu. It's a considered quite a delicacy in Japan."
"Yeah, you mean just like Hentai tentacle porn?"