In the US, and now in many other countries, a go-around is when you abort the landing, an overshoot is when you run off the end of the runway.
Both usages are correct, according to
Jane's Aerospace Dictionary:
Overshoot: (1) To abandon landing and make fresh approach; in US called missed approach or go-around; (2) To land too far across available landing area and make uncontrolled excursion into region beyond; (3) To exceed desired IAS, alt or other flight condition