cube cornering 

an uncomfortable work situation where a coworkers get extremely close to you in your cube and corners you in. This typically happens when they look at something on your computer screen or come in to tell you some gossip. The key here is not only does the person infringe on your space, the person also stays around too long. One could be cube cornering a coworker for several minutes.

First thing Monday morning, Michael Jan did his usual cube cornering on me. I had to ask him to leave after a couple of extremely uncomfortable minutes.

cube cornering by Brent Hoo July 18, 2006