Used when something doesn't meet expectations, especially if success was anticipated.

Expectation vs. Reality

Implies a noticeable lack of success, often publicly evident.

Perception of Failure

Can suggest an embarrassing outcome, particularly with creative endeavors or public speaking.

Refers to something that should be intense or exciting but turns out to be underwhelming.

Often describes the loss of fizzy or gaseous qualities, like in drinks.

Emphasizes the failure of a joke or humorous remark to amuse others.

Highlights the importance of timing in comedy for a joke not to fall flat.

Points out that humor needs to be tailored to the audience to avoid falling flat.