Corporate slang for the office environment, as a whole.
Cubical Land is a notional concept of any office space where an employee typically works, and isn't really a physical location or cubicle farm. Typically used when talking about a security zone or network subnet.
Hey Erik, you're not going to believe this! Some assclown admin wanted to put all his production app servers on the core network, until I reminded him that 60% of corporate attacks occur from Cubicle Land, not the Internet. He's such a tool.