There's a passenger on our basketball team who barely shows up for practice.

passenger 是名词，来自动词 pass（通过）加上后缀 -enger，原指"过路人、旅客"，引申为"乘客、队员"等含义。在运动队中常用来比喻那些名义上是队员但实际上很少参与训练或比赛的人。