FIZZLE

A spluttering or hissing sound.

Failure of a nuclear bomb to meet its expected yield during testing.

An abortive effort; a flop or dud.

To sputter or hiss.

"The soda fizzled for several minutes after it was poured."

To decay or die off to nothing; to burn out; to end less successfully than previously hoped.

"The entire project fizzled after the founder quit."