siss Meaning, Definition & Usage

  1. noun a female person who has the same parents as another person
    sis; sister.
    • my sister married a musician
  2. verb express or utter with a hiss
    sizz; sibilate; hiss.
  3. verb make a sharp hissing sound, as if to show disapproval
    sizz; sibilate; hiss.

WordNet

Siss intransitive verb
Etymology
Of imitative origin; cf. D. sissen, G. zischen.
Definitions
  1. To make a hissing sound; as, a flatiron hot enough to siss when touched with a wet finger. Colloq. U. S.; Local, Eng.
Siss noun
Definitions
  1. A hissing noise. Colloq. U. S.

Webster 1913