New American Dream Dictionary

by Joan Seaman - Tom Philbin
1. A sense that deceit is slowly revealing itself (to hear a hissing snake).

2. A need for caution in expressing anger inap­propriately (a hissing snake).

3. Progress will continue in spite of others (people hissing rudely).

Ten Thousand Dream Interpretation

by Gustavus Hindman Miller
To dream of hissing persons, is an omen that you will be displeased beyond endurance at the discourteous treatment shown you while among newly made acquaintances.

If they hiss you, you will be threatened with the loss of a friend.

Islamic Dream Interpretation

by Ibn Seerin
(See Sound of animals)