"fly like a rock" meaning in English

{
  "antonyms": [
    {
      "word": "fly like a bird"
    }
  ],
  "forms": [
    {
      "form": "flies like a rock",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "flying like a rock",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "flew like a rock",
      "tags": [
        "past"
      ]
    },
    {
      "form": "flown like a rock",
      "tags": [
        "participle",
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "fly<,,flew,flown> like a rock"
      },
      "expansion": "fly like a rock (third-person singular simple present flies like a rock, present participle flying like a rock, simple past flew like a rock, past participle flown like a rock)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "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 entries with language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English predicates",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English similes",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "If the wings aren't big enough, your paper airplane will fly like a rock.",
          "type": "example"
        },
        {
          "ref": "1970, American Association of Physics Teachers, The Physics Teacher, volumes 8–9, page 541",
          "text": "When students have compared the wing areas and weights by squaring and cubing the linear ratios, they correctly predict the large one will fly \"like a rock\"...",
          "type": "quotation"
        }
      ],
      "glosses": [
        "to travel through the air with little or no benefit from aerodynamic lift"
      ],
      "id": "en-fly_like_a_rock-en-verb-VPrPWebk",
      "links": [
        [
          "sarcastic",
          "sarcastic"
        ],
        [
          "aerodynamic",
          "aerodynamic"
        ],
        [
          "lift",
          "lift"
        ]
      ],
      "qualifier": "simile",
      "raw_glosses": [
        "(simile, sometimes sarcastic) to travel through the air with little or no benefit from aerodynamic lift"
      ],
      "tags": [
        "sarcastic",
        "sometimes"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-fly like a rock.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/9/98/En-au-fly_like_a_rock.ogg/En-au-fly_like_a_rock.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/9/98/En-au-fly_like_a_rock.ogg",
      "tags": [
        "Australia"
      ],
      "text": "Audio (AU)"
    }
  ],
  "word": "fly like a rock"
}

{
  "antonyms": [
    {
      "word": "fly like a bird"
    }
  ],
  "forms": [
    {
      "form": "flies like a rock",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "flying like a rock",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "flew like a rock",
      "tags": [
        "past"
      ]
    },
    {
      "form": "flown like a rock",
      "tags": [
        "participle",
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "fly<,,flew,flown> like a rock"
      },
      "expansion": "fly like a rock (third-person singular simple present flies like a rock, present participle flying like a rock, simple past flew like a rock, past participle flown like a rock)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English entries with language name categories using raw markup",
        "English lemmas",
        "English multiword terms",
        "English predicates",
        "English sarcastic terms",
        "English similes",
        "English terms with audio links",
        "English terms with non-redundant non-automated sortkeys",
        "English terms with quotations",
        "English terms with usage examples",
        "English verbs"
      ],
      "examples": [
        {
          "text": "If the wings aren't big enough, your paper airplane will fly like a rock.",
          "type": "example"
        },
        {
          "ref": "1970, American Association of Physics Teachers, The Physics Teacher, volumes 8–9, page 541",
          "text": "When students have compared the wing areas and weights by squaring and cubing the linear ratios, they correctly predict the large one will fly \"like a rock\"...",
          "type": "quotation"
        }
      ],
      "glosses": [
        "to travel through the air with little or no benefit from aerodynamic lift"
      ],
      "links": [
        [
          "sarcastic",
          "sarcastic"
        ],
        [
          "aerodynamic",
          "aerodynamic"
        ],
        [
          "lift",
          "lift"
        ]
      ],
      "qualifier": "simile",
      "raw_glosses": [
        "(simile, sometimes sarcastic) to travel through the air with little or no benefit from aerodynamic lift"
      ],
      "tags": [
        "sarcastic",
        "sometimes"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-fly like a rock.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/9/98/En-au-fly_like_a_rock.ogg/En-au-fly_like_a_rock.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/9/98/En-au-fly_like_a_rock.ogg",
      "tags": [
        "Australia"
      ],
      "text": "Audio (AU)"
    }
  ],
  "word": "fly like a rock"
}