Abide coded means: Describes someone who radiates calm, unbothered, roll-with-it energy - the person in the group who never overreacts, rarely stresses, and somehow finds equilibrium regardless of what's going on. 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.