"float someone's boat" meaning in English

{
  "forms": [
    {
      "form": "floats someone's boat",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "floating someone's boat",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "floated someone's boat",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "floated someone's boat",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "float someone's boat (third-person singular simple present floats someone's boat, present participle floating someone's boat, simple past and past participle floated someone's boat)",
      "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": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Emotions",
          "orig": "en:Emotions",
          "parents": [
            "Mind",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "whatever floats your boat"
        }
      ],
      "examples": [
        {
          "text": "I invited Lily to join us, but horror films don't float her boat.",
          "type": "example"
        }
      ],
      "glosses": [
        "To interest or appeal to someone; to make someone happy."
      ],
      "id": "en-float_someone's_boat-en-verb-qKIwPWIG",
      "links": [
        [
          "interest",
          "interest"
        ],
        [
          "appeal",
          "appeal"
        ],
        [
          "happy",
          "happy"
        ]
      ],
      "raw_glosses": [
        "(slang) To interest or appeal to someone; to make someone happy."
      ],
      "synonyms": [
        {
          "word": "melt someone's butter"
        },
        {
          "word": "tickle someone's fancy"
        },
        {
          "word": "turn someone's crank"
        },
        {
          "word": "be someone's cup of tea"
        },
        {
          "word": "butter someone's biscuit"
        }
      ],
      "tags": [
        "slang"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "en-au-float someone's boat.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/0/08/En-au-float_someone%27s_boat.ogg/En-au-float_someone%27s_boat.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/0/08/En-au-float_someone%27s_boat.ogg"
    }
  ],
  "word": "float someone's boat"
}

{
  "derived": [
    {
      "word": "whatever floats your boat"
    }
  ],
  "forms": [
    {
      "form": "floats someone's boat",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "floating someone's boat",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "floated someone's boat",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "floated someone's boat",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "float someone's boat (third-person singular simple present floats someone's boat, present participle floating someone's boat, simple past and past participle floated someone's boat)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English rhyming phrases",
        "English slang",
        "English terms with usage examples",
        "English verbs",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Emotions"
      ],
      "examples": [
        {
          "text": "I invited Lily to join us, but horror films don't float her boat.",
          "type": "example"
        }
      ],
      "glosses": [
        "To interest or appeal to someone; to make someone happy."
      ],
      "links": [
        [
          "interest",
          "interest"
        ],
        [
          "appeal",
          "appeal"
        ],
        [
          "happy",
          "happy"
        ]
      ],
      "raw_glosses": [
        "(slang) To interest or appeal to someone; to make someone happy."
      ],
      "tags": [
        "slang"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "en-au-float someone's boat.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/0/08/En-au-float_someone%27s_boat.ogg/En-au-float_someone%27s_boat.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/0/08/En-au-float_someone%27s_boat.ogg"
    }
  ],
  "synonyms": [
    {
      "word": "melt someone's butter"
    },
    {
      "word": "tickle someone's fancy"
    },
    {
      "word": "turn someone's crank"
    },
    {
      "word": "be someone's cup of tea"
    },
    {
      "word": "butter someone's biscuit"
    }
  ],
  "word": "float someone's boat"
}