MEME REFERENCE

Sofa explosion

Use when a calm or comfortable situation is abruptly destroyed by a wildly disruptive event.

What it expresses: Normality holds for one beat before chaos erupts without warning.
Example: A quiet family chat suddenly receives fifty messages about an old inheritance dispute, and you compare it to the exploding sofa.
When not to use it: A planned announcement arrives on schedule and everyone responds calmly; expected change is not a surprise detonation.