"memory jogger" meaning in English

{
  "forms": [
    {
      "form": "memory joggers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "memory jogger (plural memory joggers)",
      "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": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1855, James Melville Gilliss, The U.S. Naval Astronomical Expedition to the Southern Hemisphere, volume 2, page 108:",
          "text": "Some weeks had elapsed without one of these memory-joggers, when, to sharpen our recollections, quite an old-fashioned shake occurred soon after midnight of the 24th March.",
          "type": "quote"
        },
        {
          "ref": "1982, Douglas Adams, Life, the Universe and Everything, page 90:",
          "text": "\"Hard not to notice. Bit of a memory jogger. Bit of a pointer. Bit of a bloody giveaway!\"",
          "type": "quote"
        }
      ],
      "glosses": [
        "Something which jogs the memory; an aid for remembering."
      ],
      "id": "en-memory_jogger-en-noun-ju5eiNyD"
    }
  ],
  "word": "memory jogger"
}

{
  "forms": [
    {
      "form": "memory joggers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "memory jogger (plural memory joggers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "ref": "1855, James Melville Gilliss, The U.S. Naval Astronomical Expedition to the Southern Hemisphere, volume 2, page 108:",
          "text": "Some weeks had elapsed without one of these memory-joggers, when, to sharpen our recollections, quite an old-fashioned shake occurred soon after midnight of the 24th March.",
          "type": "quote"
        },
        {
          "ref": "1982, Douglas Adams, Life, the Universe and Everything, page 90:",
          "text": "\"Hard not to notice. Bit of a memory jogger. Bit of a pointer. Bit of a bloody giveaway!\"",
          "type": "quote"
        }
      ],
      "glosses": [
        "Something which jogs the memory; an aid for remembering."
      ]
    }
  ],
  "word": "memory jogger"
}