"eat my dust" meaning in English

{
  "forms": [
    {
      "form": "eat my dust !",
      "tags": [
        "canonical"
      ]
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "intj",
  "senses": [
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        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
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          "name": "Entries with translation boxes",
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      "examples": [
        {
          "bold_text_offsets": [
            [
              17,
              28
            ]
          ],
          "text": "I'm ahead of ya! Eat my dust!",
          "type": "example"
        }
      ],
      "glosses": [
        "An in-your-face mockery to a losing rival, especially in a race"
      ],
      "id": "en-eat_my_dust-en-intj-jAw9wofa",
      "links": [
        [
          "in-your-face",
          "in-your-face#English"
        ]
      ],
      "raw_glosses": [
        "(informal) An in-your-face mockery to a losing rival, especially in a race"
      ],
      "related": [
        {
          "word": "eat someone's dust"
        }
      ],
      "tags": [
        "informal"
      ],
      "translations": [
        {
          "code": "hi",
          "lang": "Hindi",
          "lang_code": "hi",
          "note": "धूल चटाना (to defeat, literally “make (someone) lick dirt”)",
          "sense": "idiomatic"
        }
      ]
    }
  ],
  "word": "eat my dust"
}

{
  "forms": [
    {
      "form": "eat my dust !",
      "tags": [
        "canonical"
      ]
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "intj",
  "related": [
    {
      "word": "eat someone's dust"
    }
  ],
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        "English entries with incorrect language header",
        "English informal terms",
        "English interjections",
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        "Hindi terms with non-redundant manual transliterations",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with Hindi translations"
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              17,
              28
            ]
          ],
          "text": "I'm ahead of ya! Eat my dust!",
          "type": "example"
        }
      ],
      "glosses": [
        "An in-your-face mockery to a losing rival, especially in a race"
      ],
      "links": [
        [
          "in-your-face",
          "in-your-face#English"
        ]
      ],
      "raw_glosses": [
        "(informal) An in-your-face mockery to a losing rival, especially in a race"
      ],
      "tags": [
        "informal"
      ]
    }
  ],
  "translations": [
    {
      "code": "hi",
      "lang": "Hindi",
      "lang_code": "hi",
      "note": "धूल चटाना (to defeat, literally “make (someone) lick dirt”)",
      "sense": "idiomatic"
    }
  ],
  "word": "eat my dust"
}