It is quite common in our family when refering to WDW to simply say "Disney", for example: "I can't wait to go back to Disney!" and our now 5 yr old DD did not quite comprehend how Walt Disney World was made up of more then just the parks, we would be at our resort, the CSR and she would ask "Are we going to Disney today?" we knew what she ment but I thought it was cute.
I hate when my Dad calls Spaceship Earth, "The big golf ball" drives me crazy!!!