cut in
phrasal verbcut in
if a motor or an engine cuts in, it starts working （马达或发动机）发动 - (especially North American English) (British English usually push in)
to go in front of other people who are waiting in a way that is rude and unfair 加塞儿；插队 He cut in ahead of me in the grocery line. 他在我前面插队。
cut in (on somebody/something)
to interrupt somebody when they are speaking 打断（谈话）；插嘴 (of a vehicle or its driver 车辆或驾驶者 to move suddenly in front of another vehicle, leaving little space between the two vehicles 超车抢道
cut somebody in (on something)
- (informal)
to give somebody a share of the profit in a business or an activity 让（某人）分享利润