Abu coded means: Describing a person, tweet, or piece of football content that radiates deep-seated anti-Manchester United sentiment even when not explicitly stating it - the kind of energy that celebrates every. There is no real cause for parental concern; it is descriptive vocabulary rather than risky behaviour. It is sporting vocabulary and harmless in itself. 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.