"chicken of the sea" meaning in English

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  "etymology_text": "From the mid-20th-century advertising jingle of StarKist brand canned tuna. Since used popularly at large for any tuna.",
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      "expansion": "chicken of the sea (uncountable)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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          "name": "Seafood",
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      "derived": [
        {
          "word": "chickpea of the sea"
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        "Tuna."
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        {
          "word": "cockroach of the sea"
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        "en:StarKist"
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  ],
  "word": "chicken of the sea"
}

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    {
      "word": "chickpea of the sea"
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  "etymology_text": "From the mid-20th-century advertising jingle of StarKist brand canned tuna. Since used popularly at large for any tuna.",
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      "word": "cockroach of the sea"
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        "Tuna."
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  "word": "chicken of the sea"
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