What is the meaning of jingle?

noun

• A metallic sound.
  • usage: "the jingle of coins"; "the jangle of spurs"
  • synonyms: jangle
• A comic verse of irregular measure.
  • usage: "he had heard some silly doggerel that kept running through his mind"
  • synonyms: doggerel, doggerel verse

verb

• Make a sound typical of metallic objects.
  • usage: "The keys were jingling in his pocket"
  • synonyms: jingle-jangle, jangle