the bottom drops/falls out of somebody's world
the bottom drops 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 dropped out of his world when an injury from a car accident meant he could no longer fly.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
the ˌbottom drops/falls out of somebody’s ˈworlda person suddenly loses all their happiness, self-confidence, etc: When his wife left him, the bottom dropped out of his world.
Farlex Partner Idioms Dictionary © Farlex 2017