If you whip someone into a particular state, you quickly and effectively cause them to be in that state.

Karl Smith, the 19-year old singer, had whipped the crowd of teenage girls into a frenzy merely by removing his shirt. 卡尔‧史密斯，那位19岁的歌手，脱了一件衬衫就让女孩子们疯狂了起来。

The final speech had the desired effect, whipping the listeners into a patriotic fervour. 最后的演讲取得了预期的效果，在听众中激起了一股爱国热潮。