Acid maxxing means: Leaning all the way into chaotic, surreal, or psychedelic energy across your personality, aesthetic, or content - maxing out the trippy factor on purpose. Not necessarily drug-related; more about. It has drug-related associations; worth a calm conversation about which side of the topic your teen is on. 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.