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
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.