tailback
/ˈteɪlbæk/noun
1
- Brit. a long queue of stationary or slow-moving traffic extending back from a busy junction or similar obstruction on the road〈英〉车辆（因受阻排成的）长龙。
2
- American Football the offensive back stationed furthest from the line of scrimmage【美橄】（离对阵争球线最远的）攻方尾后卫。