Aberzombie check means: An aberzombie check is the moment someone calls out whether a person is fully lost in the preppy brand-obsessed, socially conformist Abercrombie-and-Fitch-culture mindset - basically asking 'are. 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.