Used when someone is so tired they become physically unable to stand or remain conscious.

Physical Exhaustion

Creates a strong visual of someone falling dramatically, emphasizing the suddenness of their collapse.

Dramatic Imagery

Can depict a strong emotional response leading to a physical reaction, like overwhelming joy or relief.

The phrase can be used metaphorically to describe the sudden failure of non-physical entities, like plans or discussions.

Often used to express dismay or defeat when something does not happen as hoped or expected.