1
general::
Phrase(s): drop out of sight
1. Lit. to fall behind something and be seen no longer. • The pen dropped out of sight behind the sofa nevermore to be seen. 2. Fig. to disappear from public view; [for someone] to go into hiding. • The robbers dropped out of sight and the crime was never solved.
McGrawhill's American Idioms And Phrasal Verbs