The meaning of a dream about hiss.
To hear or see a snake hiss in your dream is a warning that you will have to control your temper and/or your impulsive actions in order to avoid antagonizing someone whose respect you value.
Human hissing is a dream of contrary. If you did it, you can expect to be caught in an embarrassing boo-boo; but if you were hissed at, your progress towards your goal may be slow but it will be steady.