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.]
© Webster 1913.
Siss, n.
A hissing noise.
[Colloq. U. S.]
© Webster 1913.