Source : Webster's Revised Unabridged Dictionary (1913)

Fizz \Fizz\ (f[i^]z), v. i. [imp. & p. p. {Fizzed} (f[i^]zd); p.
   pr. & vb. n. {Fizzing}.] [Cf. Icel. f[=i]sa to break wind,
   Dan. fise to foist, fizzle, OSw. fisa, G. fisten, feisten.
   Cf. {Foist}.]
   To make a hissing sound, as a burning fuse.

Source : WordNet®

fizzing
     adj : hissing and bubbling [syn: {fizzy}]