What is the meaning of troll?

noun

• Scandanavian folklore) a supernatural creature (either a dwarf or a giant) that is supposed to live in caves or in the mountains. (
• A partsong in which voices follow each other; one voice starts and others join in one after another until all are singing different parts of the song at the same time.
  • usage: "they enjoyed singing rounds"
  • synonyms: round
• A fisherman's lure that is used in trolling.
  • usage: "he used a spinner as his troll"
• Angling by drawing a baited line through the water.
  • synonyms: trolling

verb

• Circulate, move around.
• Cause to move round and round.
  • usage: "The child trolled her hoop"
• Sing the parts of (a round) in succession.
• Angle with a hook and line drawn through the water.
• Sing loudly and without inhibition.
• Praise or celebrate in song.
  • usage: "All tongues shall troll you"
• Speak or recite rapidly or in a rolling voice. .