disappear/vanish off the face of the earth
disappear off the face of the earth
To vanish completely and without a trace. Has anyone talked to Christina lately? It's like she disappeared off the face of the earth.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
disappear/vanish off the face of the ˈearth
disappear completely: Keep looking — they can’t just have vanished off the face of the earth.Farlex Partner Idioms Dictionary © Farlex 2017