Definition

In Balkan folk dancing, the timeslot reserved for the most complex dances that require actual rhythm and stamina, typically performed by younger dancers. Named after the mathematically intimidating 25/16 time signature that makes regular musicians weep. It's when the party separates the coordinated from the enthusiastic.

Example Usage

Let's save that Bulgarian dance for the 25/16 slot when the older folks have already gone home.

Source: Urban Dictionary (https://www.urbandictionary.com/define.php?term=25/16%20slot&defid=3183461)