"lock under" meaning in English

{
  "forms": [
    {
      "form": "locks under",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "locking under",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "locked under",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "locked under",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "lock under (third-person singular simple present locks under, present participle locking under, simple past and past participle locked under)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "African-American Vernacular English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English phrasal verbs formed with \"under\"",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "He's gonna get locked under a cell.",
          "type": "example"
        },
        {
          "text": "You won't see him around anymore, he got locked under.",
          "type": "example"
        }
      ],
      "glosses": [
        "To serve a life sentence in prison."
      ],
      "id": "en-lock_under-en-verb-G9cqvbPH",
      "qualifier": "African-American Vernacular",
      "raw_glosses": [
        "(transitive, intransitive, slang, African-American Vernacular) To serve a life sentence in prison."
      ],
      "tags": [
        "intransitive",
        "slang",
        "transitive"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "LL-Q1860 (eng)-Flame, not lame-lock under.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/d/d7/LL-Q1860_%28eng%29-Flame%2C_not_lame-lock_under.wav/LL-Q1860_%28eng%29-Flame%2C_not_lame-lock_under.wav.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/d/d7/LL-Q1860_%28eng%29-Flame%2C_not_lame-lock_under.wav/LL-Q1860_%28eng%29-Flame%2C_not_lame-lock_under.wav.ogg"
    }
  ],
  "word": "lock under"
}

{
  "forms": [
    {
      "form": "locks under",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "locking under",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "locked under",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "locked under",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "lock under (third-person singular simple present locks under, present participle locking under, simple past and past participle locked under)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "African-American Vernacular English",
        "English entries with incorrect language header",
        "English intransitive verbs",
        "English lemmas",
        "English multiword terms",
        "English phrasal verbs",
        "English phrasal verbs formed with \"under\"",
        "English slang",
        "English terms with usage examples",
        "English transitive verbs",
        "English verbs",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "text": "He's gonna get locked under a cell.",
          "type": "example"
        },
        {
          "text": "You won't see him around anymore, he got locked under.",
          "type": "example"
        }
      ],
      "glosses": [
        "To serve a life sentence in prison."
      ],
      "qualifier": "African-American Vernacular",
      "raw_glosses": [
        "(transitive, intransitive, slang, African-American Vernacular) To serve a life sentence in prison."
      ],
      "tags": [
        "intransitive",
        "slang",
        "transitive"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "LL-Q1860 (eng)-Flame, not lame-lock under.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/d/d7/LL-Q1860_%28eng%29-Flame%2C_not_lame-lock_under.wav/LL-Q1860_%28eng%29-Flame%2C_not_lame-lock_under.wav.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/d/d7/LL-Q1860_%28eng%29-Flame%2C_not_lame-lock_under.wav/LL-Q1860_%28eng%29-Flame%2C_not_lame-lock_under.wav.ogg"
    }
  ],
  "word": "lock under"
}