a coon's age

a coon's age

An exceptionally long period of time. Based on the folk belief that raccoons (shortened colloquially to "coons") had a longer-than-average lifespan. Primarily heard in US, South Africa. It will take a coon's age to get all this work finished! I haven't been on a vacation in a coon's age.
See also: age
Farlex Dictionary of Idioms.

coon's age

Also, a dog's age. A very long time, as in I haven't seen Sam in a coon's age, or It's been a dog's age since I went to the ballpark. The first phrase rests on the mistaken idea that raccoons ("coons") live a long time. The variant may reflect a similar assumption but the true origin is not known. [c. 1835] Also see donkey's years.
See also: age
The American Heritage® Dictionary of Idioms by Christine Ammer.

coon's age, a

A long time. An American expression from the first half of the nineteenth century, it is based on the mistaken idea that raccoons (or “coons”) are long-lived. They are not, but their fur, widely used from colonial times, is sturdy and long-lasting. An early example appears in black dialect in Southern Sketches (1860): “This child haint had much money in a coon’s age.”
The Dictionary of Clichés by Christine Ammer
See also:
  • coon
  • coon's age
  • coon's age, a
  • in a coon's age
  • raccoon
  • for a coon's age
  • a whale of a
  • in donkeys
  • bigger they come, the harder they fall, the
  • the bigger they are, the harder they fall
References in classic literature
Lord, I ain't had a smoke of decent tobacco or a cup of decent coffee in a coon's age. I've forgotten what a square meal tastes like.