Usually refers to the diet adopted by front of house staff at the Bach, in Scotland. Most of these poor souls go a whole shift with no break or food, resulting in a forced fast, the Bach fast. Individuals who partake in Bach fast are usually stunning, skinny and incredibly depressed
Customer: omg you look amazing!
Me: Wow thanks so much, itâs the Bach fast haha! What can I get you to drink or eat? Please leave Iâm so hungry!