subs. (colloquial).A story, a tale: spec. an incredible, long, or marvellous narration spun out by a sailor. Hence as verb (or TO SPIN YARNS) = to romance, draw the long bow; a SAILORS YARN = a travellers story (q.v.); YARN-CHOPPER (or SLINGER) = (1) a long prosy talker; and (2) a fictional journalist.
1859. C. READE, Love Me Little, Love Me Long, iii. It isnt everybody that likes these sea-YARNS as you do, Eve. No, Ill belay, and let my betters get a word in now.
1890. R. F. ZOGBAUM, From Port to Port with the White Squadron, in Scribners Magazine, viii. Oct., 465. The first lieutenant is YARNING with me under the lea of the bulwarks by the rapid-fire Hotchkiss.
1884. W. C. RUSSELL, Jacks Courtship, xxx. All the crew YARNING and smoking and taking sailors pleasure.
1885. Daily Telegraph, 29 Dec. [He] who has YARNED aforetime On the Foksle Head, and Round the Galley Fire.