"fast-mo" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "fast motion"
      },
      "expansion": "fast motion",
      "name": "m"
    },
    {
      "args": {
        "1": "en",
        "2": "slo-mo"
      },
      "expansion": "slo-mo",
      "name": "m"
    }
  ],
  "etymology_text": "Short for fast motion, as an opposite to slo-mo.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "fast-mo (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": "topical",
          "langcode": "en",
          "name": "Film",
          "orig": "en:Film",
          "parents": [
            "Entertainment",
            "Mass media",
            "Culture",
            "Media",
            "Society",
            "Communication",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "The deliberate speeding-up of film footage."
      ],
      "id": "en-fast-mo-en-noun-KTShKans",
      "links": [
        [
          "film",
          "film#Noun"
        ]
      ],
      "raw_glosses": [
        "(film) The deliberate speeding-up of film footage."
      ],
      "tags": [
        "uncountable"
      ],
      "topics": [
        "broadcasting",
        "film",
        "media",
        "television"
      ]
    }
  ],
  "word": "fast-mo"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "fast motion"
      },
      "expansion": "fast motion",
      "name": "m"
    },
    {
      "args": {
        "1": "en",
        "2": "slo-mo"
      },
      "expansion": "slo-mo",
      "name": "m"
    }
  ],
  "etymology_text": "Short for fast motion, as an opposite to slo-mo.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "fast-mo (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English uncountable nouns",
        "en:Film"
      ],
      "glosses": [
        "The deliberate speeding-up of film footage."
      ],
      "links": [
        [
          "film",
          "film#Noun"
        ]
      ],
      "raw_glosses": [
        "(film) The deliberate speeding-up of film footage."
      ],
      "tags": [
        "uncountable"
      ],
      "topics": [
        "broadcasting",
        "film",
        "media",
        "television"
      ]
    }
  ],
  "word": "fast-mo"
}