mackerel

noun
  1. A type of marine fish belonging to the family Scombridae, known for its streamlined body and oily flesh, often found in temperate and tropical seas. noun
    The fisherman caught a large mackerel off the coast this morning.
    Mackerel is often grilled or smoked to enhance its rich flavor.
  2. A term used in some expressions, often to convey surprise or emphasis, such as in the phrase 'holy mackerel'. noun
    Holy mackerel! I can't believe you won the lottery!
    When she saw the surprise party, she exclaimed, 'Holy mackerel!'