siss v 1: express or utter with a hiss [syn: {hiss}, {sizz}, {siss}, {sibilate}] 2: make a sharp hissing sound, as if to show disapproval [syn: {hiss}, {siss}, {sizz}, {sibilate}]
Siss \Siss\, v. i. [Of imitative origin; cf. D. sissen, G. zischen.] To make a hissing sound; as, a flatiron hot enough to siss when touched with a wet finger. [Colloq. U. S.; Local, Eng.] [1913 Webster]
Siss \Siss\, n. A hissing noise. [Colloq. U. S.] [1913 Webster]