3
Someone who cheats others or lives off little

EITHER comes from the word 'Doss house' OR DSS'er (Department of Social Security).
fucking hell you dosser clean our appartment
by Duncan Crossland June 13, 2006
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5
A person who uses the now obsolete DOS (Disk Operating System)
He still uses dos! What a dosser.
by Lvvdsvvl February 13, 2018
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