the bottom falls out of your world

the bottom falls out of (one's) world

Someone loses their entire sense of happiness, purpose, motivation, or confidence. His entire life was devoted to becoming a fighter pilot, so the bottom fell out of his world when an injury from a car accident meant he could no longer fly.
See also: bottom, fall, of, out, world
Farlex Dictionary of Idioms.

the bottom falls out of your world

If the bottom falls out of your world, something bad happens that changes your life and makes you very unhappy. When our son was arrested, the bottom fell out of our world.
See also: bottom, fall, of, out, world
Collins COBUILD Idioms Dictionary, 3rd ed.
See also:
  • the bottom drops out of (one's) world
  • the bottom drops/falls out of somebody's world
  • the bottom falls out of (one's) world
  • distribute
  • distribute (something) over (something)
  • distribute over
  • supply (someone or something) with (someone or something)
  • supply with
  • carry (someone) off their feet
  • in all (one's) (born) days