Swell hit - Swell hit

...Sweetfish are best grilled with salt and eaten with knotweed vinegar. They are called "noborigushi" or "uneriuchi" and are made by grilling them with a metal comb to make the fish's tail look taut, then sprinkling salt on the fins and grilling them. Knotweed vinegar is made with a generous amount of green knotweed leaves, which are crushed well and mixed with vinegar.

*Some of the terminology that refers to "undulation hitting" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…アユは塩焼きにしてタデ酢で食べるのがよい。〈のぼりぐし〉〈うねり打ち〉などと呼ぶが，ぴんと尾をはねた姿に金ぐしを打ち，ひれに化粧塩をして焼く。タデ酢は，青タデの葉をたっぷり使い，よくすりつぶして酢と合わせる。…

※「うねり打ち」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報