Completely finished or used up, as in There's no milk left; it's all gone.
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
Examples from the Web for all gone
As I rose from drinking, a deadly, all-gone feeling overcame me.The Spell of the Rockies
Enos A. Mills
Hogarth, with an all-gone gesture, handed the telegram to Loveday.The Lord of the Sea
M. P. Shiel
The empty or "all-gone" feeling at the stomach is like that of Sepia.
Before night of the second day that all-gone sensation had vanished.One Third Off
Irvin S. Cobb
Sudden fright is felt as an all-gone sensation "at the pit of the stomach."Outwitting Our Nerves
Josephine A. Jackson and Helen M. Salisbury