Australian for very early in the morning.
We need to get up at sparrow farts tomorrow to catch the plane.
The earliest time of the morning. About the time when all the sparrows get up and let out a little fart signifying their awakening.
I gotta get up this morning at sparrow's fart. What a raid.
Common phrase, especially in UK/IRL. A small, propeller-driven commuter flight.
When we flew from Chicago to New York they put us on a sparrow fart...