"prawn killer" meaning in English

{
  "forms": [
    {
      "form": "prawn killers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "prawn killer (plural prawn killers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [],
      "glosses": [
        "The slipper lobster Ibacus alticrenatus."
      ],
      "id": "en-prawn_killer-en-noun-xhMZ9apG",
      "links": [
        [
          "slipper lobster",
          "slipper lobster"
        ]
      ]
    },
    {
      "categories": [],
      "glosses": [
        "The slipper lobster Ibacus peronii."
      ],
      "id": "en-prawn_killer-en-noun-el4xmeDQ",
      "links": [
        [
          "slipper lobster",
          "slipper lobster"
        ]
      ]
    },
    {
      "categories": [
        {
          "_dis": "28 28 45",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "28 28 43",
          "kind": "lifeform",
          "langcode": "en",
          "name": "Crustaceans",
          "orig": "en:Crustaceans",
          "parents": [
            "Arthropods",
            "Animals",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "The mantis shrimp."
      ],
      "id": "en-prawn_killer-en-noun-E8YRz1At",
      "links": [
        [
          "mantis shrimp",
          "mantis shrimp"
        ]
      ]
    }
  ],
  "word": "prawn killer"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English nouns",
    "en:Crustaceans"
  ],
  "forms": [
    {
      "form": "prawn killers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "prawn killer (plural prawn killers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Entries using missing taxonomic name (species)"
      ],
      "glosses": [
        "The slipper lobster Ibacus alticrenatus."
      ],
      "links": [
        [
          "slipper lobster",
          "slipper lobster"
        ]
      ]
    },
    {
      "categories": [
        "Entries using missing taxonomic name (species)"
      ],
      "glosses": [
        "The slipper lobster Ibacus peronii."
      ],
      "links": [
        [
          "slipper lobster",
          "slipper lobster"
        ]
      ]
    },
    {
      "glosses": [
        "The mantis shrimp."
      ],
      "links": [
        [
          "mantis shrimp",
          "mantis shrimp"
        ]
      ]
    }
  ],
  "word": "prawn killer"
}