#1 fizzle v. [taper off, peter out, fizzle out] end weakly; "The music just petered out--there was no proper ending". wn
#2 fizzle n. [hiss, hissing, hushing, sibilation] a fricative sound (especially as an expression of disapproval); "the performers could not be heard over the hissing of the audience". wn
#3 fizzle n. [flop, bust] a complete failure; "the play was a dismal flop". wn
vizzz