a laborer who is obliged to do menial work
"After years of working as a drudge in the coal mines, he finally saved enough money to buy his own small farm."
A person who works in a low servile job.
"After years of working as a drudge for the estate, he finally demanded better pay and respect from his employers."
To labour in (or as in) a low servile job.
"After years of drudging through menial tasks at the factory, Maria finally saved enough to open her own bakery."