Ag energy means: The unmistakable aura of someone operating at full AG capacity - composed, commanding, unbothered, and quietly intimidating. It's the vibe that radiates off a person who clearly doesn't need to. 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.