oxback noun1 •The back of an ox (being ridden, or laden with luggage, as a means of transportation).3. A bushman on oxback, and our guide on horseback. 4. My wagon and ten oxen. 5. Our flock of sheep and goats. 6. Our third wagon and ten oxen. 7. The chief and his son, on oxback. 8. Our spare oxen. — 1841