Top shelf
"Top shelf" was a term used by bartenders to describe premium alcoholic beverages, which were typically kept on the top shelf in a bar. The term was used in contrast to low quality alcohol, such as hooch, swill, or rot-gut.

When Jean-Luc Picard told Guinan he would need something "stronger" to drink than hot Earl Grey tea, she asked if he want top shelf or hooch. Picard opted for hooch, and Guinan grabbed a bottle of Saurian brandy. ()

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Victual culture