"cuckoo spit" meaning in English

{
  "etymology_text": "From appearing on plants at around the time that cuckoo birds return in the spring.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "cuckoo spit (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "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 entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "en",
          "name": "Hemipterans",
          "orig": "en:Hemipterans",
          "parents": [
            "Insects",
            "Arthropods",
            "Animals",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A frothy mass of white liquid that is secreted onto plants by froghopper larvae and serves as a protective covering."
      ],
      "id": "en-cuckoo_spit-en-noun--jSuc20X",
      "links": [
        [
          "froghopper",
          "froghopper"
        ],
        [
          "larva",
          "larva"
        ]
      ],
      "related": [
        {
          "word": "spitbug"
        },
        {
          "word": "spittlebug"
        }
      ],
      "synonyms": [
        {
          "word": "cuckoo-spittle"
        },
        {
          "word": "frog spit"
        },
        {
          "word": "toad-spit"
        }
      ],
      "tags": [
        "uncountable"
      ],
      "translations": [
        {
          "code": "nl",
          "lang": "Dutch",
          "sense": "frothy mass",
          "word": "koekoeksspuug"
        },
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "frothy mass",
          "word": "käärmeensylki"
        }
      ],
      "wikipedia": [
        "cuckoo spit"
      ]
    }
  ],
  "word": "cuckoo spit"
}

{
  "etymology_text": "From appearing on plants at around the time that cuckoo birds return in the spring.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "cuckoo spit (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "spitbug"
    },
    {
      "word": "spittlebug"
    }
  ],
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "English uncountable nouns",
        "en:Hemipterans"
      ],
      "glosses": [
        "A frothy mass of white liquid that is secreted onto plants by froghopper larvae and serves as a protective covering."
      ],
      "links": [
        [
          "froghopper",
          "froghopper"
        ],
        [
          "larva",
          "larva"
        ]
      ],
      "tags": [
        "uncountable"
      ],
      "wikipedia": [
        "cuckoo spit"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "cuckoo-spittle"
    },
    {
      "word": "frog spit"
    },
    {
      "word": "toad-spit"
    }
  ],
  "translations": [
    {
      "code": "nl",
      "lang": "Dutch",
      "sense": "frothy mass",
      "word": "koekoeksspuug"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "frothy mass",
      "word": "käärmeensylki"
    }
  ],
  "word": "cuckoo spit"
}