1. British, Slang a bed or bunk, esp. in a dosshouse
2. British, Slang to sleep, esp. in a dosshouse
Webster’s New World College Dictionary, Fourth Edition, compiled by the
editors of Webster’s New World Dictionaries. Copyright © 2010 by Houghton
Mifflin Harcourt. Published by Houghton Mifflin Harcourt. All rights reserved.
Word origin of 'doss'< L dorsum, the back