Acid energy means: A vibe that's sharp, chaotic, and slightly unhinged - like someone who's running on a completely different wavelength. Can apply to a person's presence, a social dynamic, or a piece of art that. There is no real cause for parental concern; it is descriptive vocabulary rather than risky behaviour. If your teen uses it, context will usually make the intent clear. A short, curious question about where they heard it is usually all that is needed to know whether to follow up.