Jeweller's shop means: An exceptionally rich pocket or seam of gold-bearing ore, or, of high-quality opal; a find so rich, dazzling, and valuable that it resembles the stock of a jewellery store.. 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.