When you finish up the portion of work assigned to you, you might then need to pass it on to a different group, whether internal to your company or to your client. Either way, you pass the project “over the wall” to them. In other words, you are now waiting for their input or response to your work.
For example…
Jessica is applying for a business grant to accelerate her company’s growth. To do this, she completes all the questions related to her business in the application form and then passes it over the wall to her accountant who must then enter the company’s financial details.