Definitions of hiss:

• noun:   a fricative sound (especially as an expression of disapproval)

  Example: "The performers could not be heard over the hissing of the audience"

• noun:   a cry or noise made to express displeasure or contempt
• verb:   move with a whooshing sound
• verb:   make a sharp hissing sound, as if to show disapproval
• verb:   express or utter with a hiss
• verb:   show displeasure, as after a performance or speech
• name:  A surname (very rare: popularity rank in the U.S.: #35587)