To hear laughing or dream that you are laughing suggests that you need to lighten up and let go of your problems. Don’t put so much pressure on yourself. Laughing is also a sign of joyous release and pleasure. If you are being laughed at, then it indicates your insecurities and fears of not being accepted.
To hear evil, demonic laughing in your dream represents feelings of humiliation and/or helplessness. You feel that someone is working against you.