"bob up" meaning in English

{
  "forms": [
    {
      "form": "bobs up",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "bobbing up",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "bobbed up",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "bobbed up",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "bob up (third-person singular simple present bobs up, present participle bobbing up, simple past and past participle bobbed up)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "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 \"up\"",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2011, Curt Iles, A Spent Bullet: Louisiana 1941, page 125",
          "text": "He bobbed up and flailed toward the near bank. The weight of his boots and soaked uniform kept pulling him under.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "To rise to the surface; to ascend to the surface and remain floating there."
      ],
      "id": "en-bob_up-en-verb-Ax4fkgvq",
      "links": [
        [
          "rise",
          "rise"
        ],
        [
          "surface",
          "surface"
        ],
        [
          "ascend",
          "ascend"
        ],
        [
          "remain",
          "remain"
        ],
        [
          "floating",
          "floating"
        ]
      ],
      "raw_glosses": [
        "(intransitive) To rise to the surface; to ascend to the surface and remain floating there."
      ],
      "tags": [
        "intransitive"
      ]
    }
  ],
  "word": "bob up"
}

{
  "forms": [
    {
      "form": "bobs up",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "bobbing up",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "bobbed up",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "bobbed up",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "bob up (third-person singular simple present bobs up, present participle bobbing up, simple past and past participle bobbed up)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English intransitive verbs",
        "English lemmas",
        "English multiword terms",
        "English phrasal verbs",
        "English phrasal verbs formed with \"up\"",
        "English terms with quotations",
        "English verbs",
        "Quotation templates to be cleaned"
      ],
      "examples": [
        {
          "ref": "2011, Curt Iles, A Spent Bullet: Louisiana 1941, page 125",
          "text": "He bobbed up and flailed toward the near bank. The weight of his boots and soaked uniform kept pulling him under.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "To rise to the surface; to ascend to the surface and remain floating there."
      ],
      "links": [
        [
          "rise",
          "rise"
        ],
        [
          "surface",
          "surface"
        ],
        [
          "ascend",
          "ascend"
        ],
        [
          "remain",
          "remain"
        ],
        [
          "floating",
          "floating"
        ]
      ],
      "raw_glosses": [
        "(intransitive) To rise to the surface; to ascend to the surface and remain floating there."
      ],
      "tags": [
        "intransitive"
      ]
    }
  ],
  "word": "bob up"
}