"life/dinner principle" meaning in English

{
  "forms": [
    {
      "form": "dinner principle",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "!"
      },
      "expansion": "dinner principle (plural not attested)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "life-dinner principle"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English nouns with unattested plurals",
          "parents": [
            "Nouns with unattested plurals",
            "Nouns",
            "Lemmas"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2006, Richard Dawkins, The Selfish Gene, 30th anniversary edition, page 250",
          "text": "My colleague John Krebs and I have dubbed this the ‘life/dinner principle’. Because of the life/dinner principle, animals might at times behave in ways that are not in their own best interests, manipulated by some other animal.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Alternative form of life-dinner principle"
      ],
      "id": "en-life/dinner_principle-en-noun-xXSy8NJ2",
      "links": [
        [
          "life-dinner principle",
          "life-dinner principle#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative",
        "no-plural"
      ]
    }
  ],
  "word": "life/dinner principle"
}

{
  "forms": [
    {
      "form": "dinner principle",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "!"
      },
      "expansion": "dinner principle (plural not attested)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "life-dinner principle"
        }
      ],
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English nouns with unattested plurals",
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "2006, Richard Dawkins, The Selfish Gene, 30th anniversary edition, page 250",
          "text": "My colleague John Krebs and I have dubbed this the ‘life/dinner principle’. Because of the life/dinner principle, animals might at times behave in ways that are not in their own best interests, manipulated by some other animal.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Alternative form of life-dinner principle"
      ],
      "links": [
        [
          "life-dinner principle",
          "life-dinner principle#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative",
        "no-plural"
      ]
    }
  ],
  "word": "life/dinner principle"
}