top shelf adjective 2noun 1forms 1 adjective2 •(US) Best, or high quality.I bought a bottle of top shelf whiskey. •(UK, informal) Describing books, magazines, or movies that have adult content or softcore pornography.Most of the band used to buy Autotrader to read on the various bus and plane journeys, but Barry would always turn up with a copy of Underwear Unlimited or some other seedy little top-shelf mag. — 2008 noun1 •The upper part of the goal. formstop shelves