"that's my" meaning in English

{
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "phrase"
      },
      "expansion": "that's my",
      "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": "English non-constituents",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2015, \"Lobster Claws\", season 1, episode 7a of Star vs. the Forces of Evil [Lobster Claws chooses to follow Ludo as a villain, instead of staying behind with Marco]",
          "text": "Marco: Don't do it, Lobster Claws! What about wanting to be good?\n[Lobster Claws punches Marco]\nLudo: That's my monster."
        },
        {
          "text": "2016, \"The Veracity Elasticity\", season 10, episode 7 of The Big Bang Theory\nSheldon: While I'm gone, don't breathe on my pillow.\nAmy: How about if I don't breathe at all?\nSheldon: That's my girl."
        }
      ],
      "glosses": [
        "Indicates approval at someone who is doing something praiseworthy."
      ],
      "id": "en-that's_my-en-phrase-yGV2Tyb1",
      "links": [
        [
          "approval",
          "approval#English"
        ],
        [
          "praiseworthy",
          "praiseworthy#English"
        ]
      ],
      "related": [
        {
          "word": "attaboy"
        },
        {
          "word": "attagirl"
        }
      ]
    }
  ],
  "word": "that's my"
}

{
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "phrase"
      },
      "expansion": "that's my",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "phrase",
  "related": [
    {
      "word": "attaboy"
    },
    {
      "word": "attagirl"
    }
  ],
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English non-constituents",
        "English phrases",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "ref": "2015, \"Lobster Claws\", season 1, episode 7a of Star vs. the Forces of Evil [Lobster Claws chooses to follow Ludo as a villain, instead of staying behind with Marco]",
          "text": "Marco: Don't do it, Lobster Claws! What about wanting to be good?\n[Lobster Claws punches Marco]\nLudo: That's my monster."
        },
        {
          "text": "2016, \"The Veracity Elasticity\", season 10, episode 7 of The Big Bang Theory\nSheldon: While I'm gone, don't breathe on my pillow.\nAmy: How about if I don't breathe at all?\nSheldon: That's my girl."
        }
      ],
      "glosses": [
        "Indicates approval at someone who is doing something praiseworthy."
      ],
      "links": [
        [
          "approval",
          "approval#English"
        ],
        [
          "praiseworthy",
          "praiseworthy#English"
        ]
      ]
    }
  ],
  "word": "that's my"
}