fizzling

verb

1. (form-of, gerund, participle, present)present participle and gerund of fizzle

noun

1. The sound of something that fizzles.

   “On the drive home Cromley decided that he must tell Kathleen of his verification of what, he was sure, had been her suspicions. He knew now why she had been so upset by moanings and fizzlings in the hot-water pipes.”