The story
From sparrow + fart. In the dawn sense, apparently from a UK dialect (Yorkshire) from before 1828.
Etymology from Wiktionary, CC BY-SA 4.0.
sparrow-fart
Today it means: A time very early in the day; dawn. Full definition →
Today it means: A time very early in the day; dawn. Full definition →
From sparrow + fart. In the dawn sense, apparently from a UK dialect (Yorkshire) from before 1828.
Etymology from Wiktionary, CC BY-SA 4.0.