noun
fugu sashimi; thinly sliced pufferfish
A dish of raw pufferfish sliced paper-thin and arranged decoratively, often served with ponzu and garnishes.
ふぐ刺しは、透き通るほど薄く切られている。
Fugu sashimi is sliced so thin it's almost transparent.
今夜は奮発してふぐ刺しを頼もう。
Let's splurge and order fugu sashimi tonight.
刺身 is generic sashimi; ふぐ刺し specifically uses pufferfish and is sliced extremely thin.
Compound of ふぐ (pufferfish) and 刺し (sliced raw fish, from 刺身).