What is a tall tale?

'What is a tall tale? And what is tall talk? A tall tale is a folk tale seized by the activity of tall talk and construed as a lie. Anyone who memorizes Vladimir Propp's thirty-one episodes can tell a folk tale, recite the legend of a hunt, but only a thinker who has contemplated the bloody hurt of that hunt, considered the pains of Time, Distance, and Dimension, and examined critically the way myth resolves them, can properly stretch a tale, derange its structural features, and expose its absurdity. Tall talk is thus at once a narrative skill and a philosophical stance. The teller unerringly bombards us with pertinent hyperbole, artfully digresses, takes us in, draws us into the field of deception, and makes us at last complicit. Whether in folklore or literature, the tall tale is never innocent, mythically immediate, but instead always begins as a subversion of the story.'

- Neil Schmitz
From Tall Tale, Tall Talk: Pursuing the Lie in Jacksonian Literature