"ass guard" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "ass",
        "3": "guard",
        "t1": "buttocks",
        "t2": "protective part of a sword, machine, etc."
      },
      "expansion": "ass (“buttocks”) + guard (“protective part of a sword, machine, etc.”)",
      "name": "compound"
    }
  ],
  "etymology_text": "From ass (“buttocks”) + guard (“protective part of a sword, machine, etc.”).",
  "forms": [
    {
      "form": "ass guards",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "ass guard (plural ass guards)",
      "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"
        }
      ],
      "glosses": [
        "A mudguard which is attached at the back of a bicycle saddle."
      ],
      "id": "en-ass_guard-en-noun-rGQtaira",
      "links": [
        [
          "mudguard",
          "mudguard"
        ]
      ],
      "raw_glosses": [
        "(rare) A mudguard which is attached at the back of a bicycle saddle."
      ],
      "synonyms": [
        {
          "word": "butt fender"
        },
        {
          "word": "ass saver"
        }
      ],
      "tags": [
        "rare"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈæsˌɡɑɹd/"
    },
    {
      "homophone": "Asgard"
    }
  ],
  "word": "ass guard"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "ass",
        "3": "guard",
        "t1": "buttocks",
        "t2": "protective part of a sword, machine, etc."
      },
      "expansion": "ass (“buttocks”) + guard (“protective part of a sword, machine, etc.”)",
      "name": "compound"
    }
  ],
  "etymology_text": "From ass (“buttocks”) + guard (“protective part of a sword, machine, etc.”).",
  "forms": [
    {
      "form": "ass guards",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "ass guard (plural ass guards)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English compound terms",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with IPA pronunciation",
        "English terms with homophones",
        "English terms with rare senses"
      ],
      "glosses": [
        "A mudguard which is attached at the back of a bicycle saddle."
      ],
      "links": [
        [
          "mudguard",
          "mudguard"
        ]
      ],
      "raw_glosses": [
        "(rare) A mudguard which is attached at the back of a bicycle saddle."
      ],
      "synonyms": [
        {
          "word": "butt fender"
        },
        {
          "word": "ass saver"
        }
      ],
      "tags": [
        "rare"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈæsˌɡɑɹd/"
    },
    {
      "homophone": "Asgard"
    }
  ],
  "word": "ass guard"
}