English Dictionary
siss
v 1: express or utter with a hiss [syn: {hiss}, {sizz}, {sibilate}]
2: make a sharp hissing sound, as if to show disapproval [syn:
{hiss}, {sizz}, {sibilate}]
English Computing Dictionary
KISS
Early system on IBM 650. Listed in CACM 2(5):16 (May 1959).