From Longman Dictionary of Contemporary Englishoff the mapoff the mapinformalFAR a long way from any large town It’s a small place in Nebraska. Right off the map. → map
Examples from the Corpus
off the map• Eleven years ago, highway officials voted, in essence, to take Route 66 off the map.• Antonia, as the year pressed on, was gradually dropping off the map.• Augustine somehow resists every attempt to wipe it off the map.• Finally, he peeled the markers off the map, leaving it blank once more.• We're slipping off the map.• We had quite literally walked off the map.• But after only one spoonful, I could tell this stuff was off the map.• In El Salvador they've just had an earthquake, and whole towns were wiped off the map. 