What does "hassling" mean?

Native speaker’s answer
Rebecca
To "hassle" someone means to irritate, harass, or bother someone. In this case, Iron Man wants to know why Peter Quill is harassing them for information on Gamora when they're both on the same side. Ex: Working in the service sector, you often get customers who hassle you. Ex: My brother kept hassling me while I was doing my homework, so I tattled on him.