A specially long, formal letter.
I have to write a epistle that will go to the government organization on behalf of the company.
by AnkitPatwari January 17, 2008
2 more definitions
An excessively long e-mail, giving unnecessary information or unsolicited advice.
"My dad always writes really long emails telling me what to do, they're like e-pistles of St. Paul!"
by witz April 13, 2007