This subtle mash up is a congruent conflation of “fall/drop off the map” and “fall or vanish/disappear off the face of the earth”, both meaning to stop being known or disappear completely. “Falling off” is the common denominator, with “earth” and “map” being associated together. The good ones need to be written down immediately upon hearing, and that is exactly what my buddy Beverly Rollins Sheingorn VanDerhei did. Thanks Beverly!
If you liked this one, check out the book on malaphors: He Smokes Like a Fish and other malaphors. For U.S. purchasers, it’s only a mere 6.99 on Amazon at http://www.amazon.com/dp/0692652205. Also available on Amazon sites around the world!!!