"say one's piece" meaning in English

{
  "forms": [
    {
      "form": "says one's piece",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "saying one's piece",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "said one's piece",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "said one's piece",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "say<,,said> one's piece"
      },
      "expansion": "say one's piece (third-person singular simple present says one's piece, present participle saying one's piece, simple past and past participle said one's piece)",
      "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": "topical",
          "langcode": "en",
          "name": "Talking",
          "orig": "en:Talking",
          "parents": [
            "Human behaviour",
            "Language",
            "Human",
            "Communication",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1987, Grateful Dead (lyrics and music), “Touch of Grey”, in In the Dark",
          "text": "I see you've got your list out / Say your piece and get out / Guess I get the gist of it, but / It's alright",
          "type": "quotation"
        }
      ],
      "glosses": [
        "To say all that one has to say about a matter; to state one's opinion or position fully."
      ],
      "id": "en-say_one's_piece-en-verb-xYkNqSjS",
      "links": [
        [
          "opinion",
          "opinion"
        ],
        [
          "position",
          "position"
        ]
      ]
    }
  ],
  "word": "say one's piece"
}

{
  "forms": [
    {
      "form": "says one's piece",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "saying one's piece",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "said one's piece",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "said one's piece",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "say<,,said> one's piece"
      },
      "expansion": "say one's piece (third-person singular simple present says one's piece, present participle saying one's piece, simple past and past participle said one's piece)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English terms with quotations",
        "English verbs",
        "en:Talking"
      ],
      "examples": [
        {
          "ref": "1987, Grateful Dead (lyrics and music), “Touch of Grey”, in In the Dark",
          "text": "I see you've got your list out / Say your piece and get out / Guess I get the gist of it, but / It's alright",
          "type": "quotation"
        }
      ],
      "glosses": [
        "To say all that one has to say about a matter; to state one's opinion or position fully."
      ],
      "links": [
        [
          "opinion",
          "opinion"
        ],
        [
          "position",
          "position"
        ]
      ]
    }
  ],
  "word": "say one's piece"
}