An informal name given to the entire eastern portion of Wisconsin state and surrounding areas, referring to the general region in the northern midwestern US where most football fans support the Green Bay Packers. Often referred to as "The Packers" and "The Pack", the GBP are a member of the National Football Conference (NFC) North Division.
"My flight was supposed to take off from Milwaukee hours ago, but I got snowed in and now I'm going to be stuck in Packerland until tomorrow." --A stranded non-Packer fan, or someone who just really isn't used to snow.
"Went up to Packerland to see Pack play against the Vikings, and we threw rotten tomatoes as that traitor Brett Favre." --A fan residing in, say, Illinois.