Hiss

[Jessica]

To make with the mouth a prolonged sound like that of the
letter s, by driving the breath between the tongue and the teeth; to
make with the mouth a sound like that made by a goose or a snake when
angered; esp., to make such a sound as an expression of hatred,
passion, or disapproval.

[Gregory]

Make a sharp sibilant sound as of the letter s.

[Tanya Shivari]

The language of the reptillian brotherhood. Created by lord [leafy].

Please [leaf a like] and let us break free from the chains of [perma banned] streams.

[Dave Paprocki]

The sound our [reptilian] [overlord] [leafy] produces. See reptilian for more info about leafy.

[Tina]

a sound mostly made by black people especially [Nigerians] which symbolizes anger, [frustration] or just [general nonsense]. It is considered rude if done to an older person.

[Renato]

to make a noise like a long s sound:

[Dianne]

To throw [hissy] [fits] by constantly [bitching] and crying. To get angry over small non-related subject matters.