A few replies ago it was brought to my attention that I was using non-American measuring units. Pardon me for the transgression. Genuine American units are included in the following conversion table, for the benefit of our overseas racers, Yankees, Californians that do not live in the Central Valley, and other esteemed foreigners.
Distance:
A frog's hair, as in "Its as fine as a frog's hair." The shortest distance.
An RCH. About 0.0005 inches or 0.013 mm
A CH. Usually 0.001 inches or 0.025 mm
A smidgen. Exactly 1/16 inch or 1.5 mm
A stone's throw. About 50 yards or 45 meters
A rifle shot. 200 yards or 175 meters
A day's ride. 15 to 20 miles. 20 to 30 km.
Time:
Three shakes of a monkey's tail. 5 minutes, more or less.
A coon's age. Approximately 15 years.
I'll get around to doing it when I get around to doing it. A long time. Same in metric or English system.
When ___ freezes over. A longer time than a long time.
Direction:
Down yonder. The direction the pointer is pointing.
Dogleg. The route is not a straight line.
Genuine time-tested measurement units. None better for precision work.