"cool story bro" meaning in English

{
  "forms": [
    {
      "form": "cool story, bro",
      "tags": [
        "alternative"
      ]
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "intj",
  "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"
        }
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              172,
              187
            ],
            [
              224,
              239
            ]
          ],
          "ref": "2016, Eddie Huang, Double Cup Love: On the Trail of Family, Food, and Broken Hearts in China, Spiegel & Grau, →ISBN, page 155:",
          "text": "“Hey, Eddie. I gotta ask you. I see these T-Shirts, too, they say ‘Cool Story, Bro.’ What's that mean?” “If someone tells you a shitty story, then you respond ironically, ‘Cool story, bro,’ to their really not cool story.” “Cool story, bro,” he said with a smile. “Loser,” I said as I pushed him.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Used to dismiss a comment perceived as boring or pointless, or refute an anecdote that one considers difficult to believe."
      ],
      "id": "en-cool_story_bro-en-intj-6EAZJr1x",
      "links": [
        [
          "Internet",
          "Internet"
        ],
        [
          "slang",
          "slang"
        ],
        [
          "dismiss",
          "dismiss#English"
        ],
        [
          "boring",
          "boring#English"
        ],
        [
          "pointless",
          "pointless#English"
        ],
        [
          "anecdote",
          "anecdote#English"
        ]
      ],
      "raw_glosses": [
        "(Internet slang, colloquial) Used to dismiss a comment perceived as boring or pointless, or refute an anecdote that one considers difficult to believe."
      ],
      "synonyms": [
        {
          "word": "and then everyone on the bus clapped"
        }
      ],
      "tags": [
        "Internet",
        "colloquial"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "LL-Q1860 (eng)-Flame, not lame-cool story bro.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/f/ff/LL-Q1860_%28eng%29-Flame%2C_not_lame-cool_story_bro.wav/LL-Q1860_%28eng%29-Flame%2C_not_lame-cool_story_bro.wav.mp3",
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    }
  ],
  "word": "cool story bro"
}

{
  "forms": [
    {
      "form": "cool story, bro",
      "tags": [
        "alternative"
      ]
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "intj",
  "senses": [
    {
      "categories": [
        "English colloquialisms",
        "English entries with incorrect language header",
        "English interjections",
        "English internet slang",
        "English lemmas",
        "English multiword terms",
        "English terms with quotations",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              172,
              187
            ],
            [
              224,
              239
            ]
          ],
          "ref": "2016, Eddie Huang, Double Cup Love: On the Trail of Family, Food, and Broken Hearts in China, Spiegel & Grau, →ISBN, page 155:",
          "text": "“Hey, Eddie. I gotta ask you. I see these T-Shirts, too, they say ‘Cool Story, Bro.’ What's that mean?” “If someone tells you a shitty story, then you respond ironically, ‘Cool story, bro,’ to their really not cool story.” “Cool story, bro,” he said with a smile. “Loser,” I said as I pushed him.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Used to dismiss a comment perceived as boring or pointless, or refute an anecdote that one considers difficult to believe."
      ],
      "links": [
        [
          "Internet",
          "Internet"
        ],
        [
          "slang",
          "slang"
        ],
        [
          "dismiss",
          "dismiss#English"
        ],
        [
          "boring",
          "boring#English"
        ],
        [
          "pointless",
          "pointless#English"
        ],
        [
          "anecdote",
          "anecdote#English"
        ]
      ],
      "raw_glosses": [
        "(Internet slang, colloquial) Used to dismiss a comment perceived as boring or pointless, or refute an anecdote that one considers difficult to believe."
      ],
      "tags": [
        "Internet",
        "colloquial"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "LL-Q1860 (eng)-Flame, not lame-cool story bro.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/f/ff/LL-Q1860_%28eng%29-Flame%2C_not_lame-cool_story_bro.wav/LL-Q1860_%28eng%29-Flame%2C_not_lame-cool_story_bro.wav.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/f/ff/LL-Q1860_%28eng%29-Flame%2C_not_lame-cool_story_bro.wav/LL-Q1860_%28eng%29-Flame%2C_not_lame-cool_story_bro.wav.ogg"
    }
  ],
  "synonyms": [
    {
      "word": "and then everyone on the bus clapped"
    }
  ],
  "word": "cool story bro"
}