What is the meaning of the word "yarn-spinning"?

Definitions:

  1. The act of telling elaborate, often imaginative or exaggerated sotries. copy to clipboard NOUN
    • Grandpa was always yarn-spinning entertaining us with tales of sea monsters and buried treasures. copy to clipboard
  2. The process of converting fibers into yarn by drawing out and twisting the fivers to give them strength and continuity. copy to clipboard NOUN
    • Modern yarn-spinning machines can produce hundreds of meters of yarn per minute. copy to clipboard

Synonyms: