To dream of a costume party represents a situation where you or others are enjoying yourself “posing” as something you’re not. A pleasant experience lying, bluffing, or not being yourself. You may be trying to escape from the demands of real life or make yourself feel better by living a lie.
Disclaimer To guide you with your dreams interpretations, we have interpreted over 6000 keywords and symbols and over 30,000 different meanings in our ever expanding dream dictionary. These meanings are in no way, the final say in what YOUR dream means, but hopefully it will inspire you to explore and offer a suggestive starting point for understanding your own dreams. There is no "one dream interpretation fits all."
. Dream Dictionary