"fizzles" in the noun sense
1. hiss, hissing, hushing, fizzle, sibilation
a fricative sound (especially as an expression of disapproval
"the performers could not be heard over the hissing of the audience"
2. flop, bust, fizzle
a complete failure
"the play was a dismal flop"
"fizzles" in the verb sense
1. taper off, peter out, fizzle out, fizzle
end weakly
"The music just petered out
Source: WordNet® (An amazing lexical database of English)
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