"shit-sucking" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "shit",
        "3": "sucking"
      },
      "expansion": "shit + sucking",
      "name": "compound"
    }
  ],
  "etymology_text": "shit + sucking",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "shit-sucking (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Negative intensifier."
      ],
      "id": "en-shit-sucking-en-adj-Sw2yAbVf",
      "raw_glosses": [
        "(slang, vulgar) Negative intensifier."
      ],
      "synonyms": [
        {
          "word": "shitsucking"
        }
      ],
      "tags": [
        "not-comparable",
        "slang",
        "vulgar"
      ]
    }
  ],
  "word": "shit-sucking"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "shit",
        "3": "sucking"
      },
      "expansion": "shit + sucking",
      "name": "compound"
    }
  ],
  "etymology_text": "shit + sucking",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "shit-sucking (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "English adjectives",
        "English compound terms",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English slang",
        "English uncomparable adjectives",
        "English vulgarities"
      ],
      "glosses": [
        "Negative intensifier."
      ],
      "raw_glosses": [
        "(slang, vulgar) Negative intensifier."
      ],
      "tags": [
        "not-comparable",
        "slang",
        "vulgar"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "shitsucking"
    }
  ],
  "word": "shit-sucking"
}