Self-expunge Edit Meaning

1.

The idea that when something (such as data, memory or a particular object) inconveniently and inexplicably goes missing it is thought to have deleted itself out of impulse or intention, i.e. it has self-expunged.

I was certain I put my car keys here, but it looks like they've self-expunged!

See expunge, erase, delete, disappear, terminate, go, obliterate, annihilate, wipe out, irony, ironic, inconvenience, mystery, enigma, awkward