Dream meaning of splash
To dream that you are being splashed by water means that you need to be more expressive with your feelings. It also indicates your need to be revitalized.
To dream that you splash someone implies that you want to share your excitement with those around you. If some gets angry or complains about being splashed, then it means that you need to better contain your your emotions.
« Back to Dreams Dictionary
Generally, this is a warning from the subconscious. A call for precaution when expressing opinions or judgments that could come back against you.