/ dɒs; NAmE dɑːs/ verb , noun
■ verb [ v ] ( BrE , slang )
1.
doss (down) to sleep somewhere, especially somewhere uncomfortable or without a real bed :
You can doss down on my floor.
2.
doss (about / around) to spend your time not doing very much :
We were just dossing about in lessons today.
■ noun
( BrE ) something that does not need much effort
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WORD ORIGIN
late 18th cent.: perhaps based on Latin dorsum back.