The acronym in this Camden spot stands for 'bring your own cocktail', which means that for a set entrance fee (£30) guests should bring their own bottle of booze for the BYOC bartenders to use as a base for some creative concoctions.
They've got a fair few tools in their kitbag, too. They'll jazz up your chosen spirit with handmade syrups, bitters, mixers, herbs, cordials, juices, salts, fruits and whatnot, tailored to the kinds of tipple to which you're partial.
Visits are limited to two hours, and must be booked in advance.