"chat-up line" meaning in English

{
  "forms": [
    {
      "form": "chat-up lines",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "chat-up line (plural chat-up lines)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "British English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2022 May 24, Nancy Groves, “What Is Unspoken Rizz? 23 Tweets That Might Just Explain It To You”, in Huffington Post",
          "text": "Chatup lines are all well and good (or let's be honest, usually bad and awful), but for some people, the silently charming approach to flirting works better.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Synonym of pick-up line"
      ],
      "id": "en-chat-up_line-en-noun-CQhzIKWU",
      "links": [
        [
          "pick-up line",
          "pick-up line#English"
        ]
      ],
      "raw_glosses": [
        "(chiefly British) Synonym of pick-up line"
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "pick-up line"
        }
      ],
      "tags": [
        "British"
      ]
    }
  ],
  "word": "chat-up line"
}

{
  "forms": [
    {
      "form": "chat-up lines",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "chat-up line (plural chat-up lines)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "British English",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "2022 May 24, Nancy Groves, “What Is Unspoken Rizz? 23 Tweets That Might Just Explain It To You”, in Huffington Post",
          "text": "Chatup lines are all well and good (or let's be honest, usually bad and awful), but for some people, the silently charming approach to flirting works better.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Synonym of pick-up line"
      ],
      "links": [
        [
          "pick-up line",
          "pick-up line#English"
        ]
      ],
      "raw_glosses": [
        "(chiefly British) Synonym of pick-up line"
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "pick-up line"
        }
      ],
      "tags": [
        "British"
      ]
    }
  ],
  "word": "chat-up line"
}