Japanese name for the
blowfish or
pufferfish, a small
fishie which
inflates itself with
water to
erect little
spikes on its surface and look
bigger than it actually is to scare off
predators. Of course, humans aren't so easily fooled.
That's why the fugu is also absolute (really about 57%) deadly poison, which accounts for it being the rarest, most expensive (and suicidal, in this noder's opinion) variety of sushi.