Source : Webster's Revised Unabridged Dictionary (1913)

Dosser \Dos"ser\, n. [LL. dosserum, or F. dossier bundle of
   papers, part of a basket resting on the back, fr. L. dorsum
   back. See {Dorsal}, and cf. {Dosel}.] [Written also {dorser}
   and {dorsel}.]
   1. A pannier, or basket.

            To hire a ripper's mare, and buy new dossers.
                                                  --Beau. & Fl.

   2. A hanging tapestry; a dorsal.

Source : WordNet®

dosser
     n : someone who sleeps in any convenient place [syn: {street
         person}]