"bet one's bottom dollar" meaning in English

{
  "forms": [
    {
      "form": "bets one's bottom dollar",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "betting one's bottom dollar",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "bet one's bottom dollar",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "bet one's bottom dollar",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "bet<,,bet> one's bottom dollar"
      },
      "expansion": "bet one's bottom dollar (third-person singular simple present bets one's bottom dollar, present participle betting one's bottom dollar, simple past and past participle bet one's bottom dollar)",
      "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 predicates",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "He talks about it a lot, but I would bet my bottom dollar that he has never actually been there.",
          "type": "example"
        }
      ],
      "glosses": [
        "To be absolutely sure of something; to be certain enough of something to wager everything."
      ],
      "id": "en-bet_one's_bottom_dollar-en-verb-sDpUtc6T",
      "links": [
        [
          "absolutely",
          "absolutely"
        ],
        [
          "sure",
          "sure"
        ],
        [
          "wager",
          "wager"
        ]
      ],
      "raw_glosses": [
        "(idiomatic) To be absolutely sure of something; to be certain enough of something to wager everything."
      ],
      "synonyms": [
        {
          "word": "bet a dollar to a doughnut"
        },
        {
          "word": "bet one's boots"
        },
        {
          "word": "bet one's life"
        },
        {
          "word": "bet the farm"
        },
        {
          "word": "stake one's life"
        }
      ],
      "tags": [
        "idiomatic"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "en-au-bet one's bottom dollar.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/9/92/En-au-bet_one%27s_bottom_dollar.ogg/En-au-bet_one%27s_bottom_dollar.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/9/92/En-au-bet_one%27s_bottom_dollar.ogg"
    }
  ],
  "word": "bet one's bottom dollar"
}

{
  "forms": [
    {
      "form": "bets one's bottom dollar",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "betting one's bottom dollar",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "bet one's bottom dollar",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "bet one's bottom dollar",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "bet<,,bet> one's bottom dollar"
      },
      "expansion": "bet one's bottom dollar (third-person singular simple present bets one's bottom dollar, present participle betting one's bottom dollar, simple past and past participle bet one's bottom dollar)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English idioms",
        "English lemmas",
        "English multiword terms",
        "English predicates",
        "English terms with usage examples",
        "English verbs",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "text": "He talks about it a lot, but I would bet my bottom dollar that he has never actually been there.",
          "type": "example"
        }
      ],
      "glosses": [
        "To be absolutely sure of something; to be certain enough of something to wager everything."
      ],
      "links": [
        [
          "absolutely",
          "absolutely"
        ],
        [
          "sure",
          "sure"
        ],
        [
          "wager",
          "wager"
        ]
      ],
      "raw_glosses": [
        "(idiomatic) To be absolutely sure of something; to be certain enough of something to wager everything."
      ],
      "synonyms": [
        {
          "word": "bet a dollar to a doughnut"
        },
        {
          "word": "bet one's boots"
        },
        {
          "word": "bet one's life"
        },
        {
          "word": "bet the farm"
        },
        {
          "word": "stake one's life"
        }
      ],
      "tags": [
        "idiomatic"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "en-au-bet one's bottom dollar.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/9/92/En-au-bet_one%27s_bottom_dollar.ogg/En-au-bet_one%27s_bottom_dollar.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/9/92/En-au-bet_one%27s_bottom_dollar.ogg"
    }
  ],
  "word": "bet one's bottom dollar"
}