"my very educated mother just served us nine pumpkins" meaning in English

{
  "etymology_text": "From the initial letters of the names of the eight planets, plus Pluto, formerly considered a planet.",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "phrase"
      },
      "expansion": "my very educated mother just served us nine pumpkins",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "phrase",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English mnemonics",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English sentences",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Astronomy",
          "orig": "en:Astronomy",
          "parents": [
            "Sciences",
            "Space",
            "All topics",
            "Nature",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "coordinate_terms": [
        {
          "word": "my very educated mother just served us nachos"
        },
        {
          "word": "my very educated mother just served us noodles"
        }
      ],
      "glosses": [
        "Used to remember the order and names of the (then) nine planets of the solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto."
      ],
      "id": "en-my_very_educated_mother_just_served_us_nine_pumpkins-en-phrase-qb-gs5Sj",
      "links": [
        [
          "astronomy",
          "astronomy"
        ],
        [
          "mnemonic",
          "mnemonic"
        ],
        [
          "solar system",
          "solar system#English"
        ],
        [
          "Mercury",
          "Mercury#English"
        ],
        [
          "Venus",
          "Venus#English"
        ],
        [
          "Earth",
          "Earth#English"
        ],
        [
          "Mars",
          "Mars#English"
        ],
        [
          "Jupiter",
          "Jupiter#English"
        ],
        [
          "Saturn",
          "Saturn#English"
        ],
        [
          "Uranus",
          "Uranus#English"
        ],
        [
          "Neptune",
          "Neptune#English"
        ],
        [
          "Pluto",
          "Pluto#English"
        ]
      ],
      "qualifier": "slightly dated",
      "raw_glosses": [
        "(astronomy, slightly dated, mnemonic) Used to remember the order and names of the (then) nine planets of the solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto."
      ],
      "synonyms": [
        {
          "word": "my very educated mother just served us nine pizzas"
        }
      ],
      "tags": [
        "mnemonic"
      ],
      "topics": [
        "astronomy",
        "natural-sciences"
      ],
      "translations": [
        {
          "code": "de",
          "lang": "German",
          "sense": "dated form of mnemonic",
          "word": "mein Vater erklärt mir jeden Sonntag unsere neun Planeten"
        }
      ]
    }
  ],
  "word": "my very educated mother just served us nine pumpkins"
}

{
  "coordinate_terms": [
    {
      "word": "my very educated mother just served us nachos"
    },
    {
      "word": "my very educated mother just served us noodles"
    }
  ],
  "etymology_text": "From the initial letters of the names of the eight planets, plus Pluto, formerly considered a planet.",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "phrase"
      },
      "expansion": "my very educated mother just served us nine pumpkins",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "phrase",
  "senses": [
    {
      "categories": [
        "English dated terms",
        "English entries with incorrect language header",
        "English lemmas",
        "English mnemonics",
        "English multiword terms",
        "English phrases",
        "English sentences",
        "en:Astronomy"
      ],
      "glosses": [
        "Used to remember the order and names of the (then) nine planets of the solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto."
      ],
      "links": [
        [
          "astronomy",
          "astronomy"
        ],
        [
          "mnemonic",
          "mnemonic"
        ],
        [
          "solar system",
          "solar system#English"
        ],
        [
          "Mercury",
          "Mercury#English"
        ],
        [
          "Venus",
          "Venus#English"
        ],
        [
          "Earth",
          "Earth#English"
        ],
        [
          "Mars",
          "Mars#English"
        ],
        [
          "Jupiter",
          "Jupiter#English"
        ],
        [
          "Saturn",
          "Saturn#English"
        ],
        [
          "Uranus",
          "Uranus#English"
        ],
        [
          "Neptune",
          "Neptune#English"
        ],
        [
          "Pluto",
          "Pluto#English"
        ]
      ],
      "qualifier": "slightly dated",
      "raw_glosses": [
        "(astronomy, slightly dated, mnemonic) Used to remember the order and names of the (then) nine planets of the solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto."
      ],
      "tags": [
        "mnemonic"
      ],
      "topics": [
        "astronomy",
        "natural-sciences"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "my very educated mother just served us nine pizzas"
    }
  ],
  "translations": [
    {
      "code": "de",
      "lang": "German",
      "sense": "dated form of mnemonic",
      "word": "mein Vater erklärt mir jeden Sonntag unsere neun Planeten"
    }
  ],
  "word": "my very educated mother just served us nine pumpkins"
}