The bar is a place where the characters go to relax or cool down after a long day.
Many Sacred Heart staff have spent time at the bar getting a drink or socializing. Dr. Cox and J.D. have enjoyed drinks together. ("My Heavy Meddle") At one point in time Janitor and Dr. Cox became drinking buddies at this bar. Many celebrations have been held here (as well as more solemn events, such as a memorial to Laverne Roberts in "My Long Goodbye"), and J.D. has taken many girls at the bar as well. This is also where Elliot Reid arranged for Keith Dudemeister to propose to her.