Present participle of fizzle; the ongoing process of ending weakly or making a weak hissing sound.
From 'fizzle' with the present participle suffix '-ing'. Shows the continuous or progressive aspect of the action described by the base verb.
When something is 'fizzling,' it's in that terrible in-between state—not quite dead but clearly dying—which is why the word captures a feeling so perfectly that it's used way beyond literal soda!
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