tailback /ˈteɪlˌbæk/ noun plural tailbacks
plural tailbacks
Learner's definition of TAILBACK
[count]
1
American football : a player on offense who runs with the ball and blocks : halfback攻方尾后卫;半卫 2
British : a situation in which the flow of traffic is blocked and a long line of vehicles forms(车辆因拥堵而排成的)长蛇阵,长队 — see also tail back at 2tail