"cocktail flu" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "cocktail",
        "3": "flu"
      },
      "expansion": "cocktail + flu",
      "name": "compound"
    }
  ],
  "etymology_text": "From cocktail + flu.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "cocktail flu (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": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2012, “A Glass Half Empty”, from “Modern Love” in The New York Times by Elissa Schappell, 2012-08-17",
          "text": "There were, of course, the hangovers. Mornings we’d wake up late, stumble to Veselka or Café Orlin in the East Village for something greasy and restorative, then trundle home to collapse on the sofa, felled by the cocktail flu, giving us permission to watch basketball doubleheaders and doze all day in each other’s arms, getting up only to be ill."
        }
      ],
      "glosses": [
        "A hangover or other negative symptoms experienced the day after ingesting alcohol."
      ],
      "id": "en-cocktail_flu-en-noun-9NgX6cit",
      "links": [
        [
          "hangover",
          "hangover#English"
        ],
        [
          "alcohol",
          "alcohol#English"
        ]
      ],
      "raw_glosses": [
        "(colloquial) A hangover or other negative symptoms experienced the day after ingesting alcohol."
      ],
      "tags": [
        "colloquial",
        "uncountable"
      ]
    }
  ],
  "word": "cocktail flu"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "cocktail",
        "3": "flu"
      },
      "expansion": "cocktail + flu",
      "name": "compound"
    }
  ],
  "etymology_text": "From cocktail + flu.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "cocktail flu (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English colloquialisms",
        "English compound terms",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English uncountable nouns",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "ref": "2012, “A Glass Half Empty”, from “Modern Love” in The New York Times by Elissa Schappell, 2012-08-17",
          "text": "There were, of course, the hangovers. Mornings we’d wake up late, stumble to Veselka or Café Orlin in the East Village for something greasy and restorative, then trundle home to collapse on the sofa, felled by the cocktail flu, giving us permission to watch basketball doubleheaders and doze all day in each other’s arms, getting up only to be ill."
        }
      ],
      "glosses": [
        "A hangover or other negative symptoms experienced the day after ingesting alcohol."
      ],
      "links": [
        [
          "hangover",
          "hangover#English"
        ],
        [
          "alcohol",
          "alcohol#English"
        ]
      ],
      "raw_glosses": [
        "(colloquial) A hangover or other negative symptoms experienced the day after ingesting alcohol."
      ],
      "tags": [
        "colloquial",
        "uncountable"
      ]
    }
  ],
  "word": "cocktail flu"
}