"bae maxxing" means: The deliberate practice of becoming the best possible partner — emotionally, physically, and socially — to either attract or keep a bae. Bae.... This is a fairly neutral word with no inherent risk attached. There is no real cause for parental concern; it is descriptive vocabulary rather than something dangerous. If your child uses it, context will usually make the meaning clear. A brief, curious question about where they heard it is generally enough to know whether to follow up.