"hay is for horses" meaning in English

{
  "etymology_text": "From hay being homophonous with hey.",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "phrase"
      },
      "expansion": "hay is for horses",
      "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": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1731 (date written), Simon Wagstaff [pseudonym; Jonathan Swift], “Dialogue I”, in A Complete Collection of Genteel and Ingenious Conversation, […], London: […] B[enjamin] Motte […], published 1738, →OCLC, page 107:",
          "text": "Neverout. Hay, Madam, did you call me? / Miſs. Hay; why, Hay is for Horſes.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Said as a retort to someone saying hey (any sense of the interjection), used to indicate that the speaker disapproves of the usage of the word \"hey\", perhaps due to a dislike of informal speech."
      ],
      "id": "en-hay_is_for_horses-en-phrase-~ukgmVxk",
      "links": [
        [
          "sarcastic",
          "sarcastic"
        ],
        [
          "retort",
          "retort#English"
        ],
        [
          "hey",
          "hey#English"
        ]
      ],
      "raw_glosses": [
        "(sarcastic) Said as a retort to someone saying hey (any sense of the interjection), used to indicate that the speaker disapproves of the usage of the word \"hey\", perhaps due to a dislike of informal speech."
      ],
      "synonyms": [
        {
          "word": "hey is for horses"
        },
        {
          "word": "hay is for horses and cows"
        }
      ],
      "tags": [
        "sarcastic"
      ]
    }
  ],
  "word": "hay is for horses"
}

{
  "etymology_text": "From hay being homophonous with hey.",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "phrase"
      },
      "expansion": "hay is for horses",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "phrase",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English phrases",
        "English sarcastic terms",
        "English terms with quotations",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "ref": "1731 (date written), Simon Wagstaff [pseudonym; Jonathan Swift], “Dialogue I”, in A Complete Collection of Genteel and Ingenious Conversation, […], London: […] B[enjamin] Motte […], published 1738, →OCLC, page 107:",
          "text": "Neverout. Hay, Madam, did you call me? / Miſs. Hay; why, Hay is for Horſes.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Said as a retort to someone saying hey (any sense of the interjection), used to indicate that the speaker disapproves of the usage of the word \"hey\", perhaps due to a dislike of informal speech."
      ],
      "links": [
        [
          "sarcastic",
          "sarcastic"
        ],
        [
          "retort",
          "retort#English"
        ],
        [
          "hey",
          "hey#English"
        ]
      ],
      "raw_glosses": [
        "(sarcastic) Said as a retort to someone saying hey (any sense of the interjection), used to indicate that the speaker disapproves of the usage of the word \"hey\", perhaps due to a dislike of informal speech."
      ],
      "tags": [
        "sarcastic"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "hey is for horses"
    },
    {
      "word": "hay is for horses and cows"
    }
  ],
  "word": "hay is for horses"
}