1. a large bag used by mail carriers for carrying mail, usually equipped with a shoulder strap.
  2. a large bag or pouch used in transporting mail in bulk from general post offices to branch offices, from city to city, etc.

Origin of mailbag

First recorded in 1805–15; mail1 + bag Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for mailbag

Historical Examples of mailbag

  • "Ah, la juventud," said the old man who had brought the mailbag.

  • But the policeman had a mailbag to deliver that night, and we had to push on.

  • All of them therefore jumped up to greet the bearer of the mailbag, being greatly interested in news from the home folks.

  • The traineau she's all pile full of mailbag, and one man go along to drive the dog.

    Brother Billy

    Frances Maragret Fox

  • The padlock on that mailbag was all bent and bunged up when the stage smashed up against that tree.

British Dictionary definitions for mailbag


mailsack or sometimes US mailpouch

  1. a large bag used for transporting or delivering mail
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for mailbag

also mail-bag, 1794, from mail (n.1) + bag (n.).

Online Etymology Dictionary, © 2010 Douglas Harper