Synonyms for Drudge (same or very similar meaning)
WordNet sense 1 (one who works hard at boring tasks):
hack, hackerWordNet sense 2 (a laborer who is obliged to do menial work):
navvy, galley slaveWordNet sense 3 (work hard):
dig, grind, labor, moil, toil, travail, labourFrom the ODE community, based on WordNetadd/edit