The Collaborative International Dictionary of English v.0.48:

fizgig \fiz"gig`\ (f[i^]z"g[i^]g), n.
   A fishgig. [Obs.] --Sandys.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

fizgig \fiz"gig`\, n. [Fizz + gig whirling thing.]
   A firework, made of damp powder, which makes a fizzing or
   hissing noise when it explodes.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

fizgig \fiz"gig`\, n. [See Gig a flirt.]
   A gadding, flirting girl. --Gosson.
   [1913 Webster]

WordNet (r) 3.0 (2006):

fizgig
    n 1: an implement with a shaft and barbed point used for
         catching fish [syn: spear, gig, fizgig, fishgig,
         lance]
    2: a firework that fizzes as it moves