wheelies是wheelie的复数
wheelie
美 ['hwili] 
英 ['wiːli] 
- n.(骑自行车或摩托车将前轮抬起的)后轮支撑车技
 
复数:wheelies  
n.  | 1. a maneuver performed on a moving or stationary bicycle or motorcycle in which the rider raises the front wheel off the ground and balances on the back wheel  |