A whip (鞭 muchi) is a tool used by Earthlings to exert control over animals or other people, through pain compliance or fear of pain, although in some activities whips can be used without use of pain, such as an additional pressure aid in dressage.
The Bio-Warrior Kishime uses Electric Whips as his special weapons in Dragon Ball Z: The World's Strongest. In Dragon Ball Z, Mr. Shu uses it to get his students like Gohan to do what he wants. He sometimes whips his students with the whip so hard they bleed. Mr. Musuka uses it to exert control over animals in his circus.