The new term being used by MLB analysts to judge the greatness of very good defensive plays. Named for Mark Buehrle, who made a spectacular play in the first game of the 2010 season and won the 2009 Gold Glove for Pitcher. The scale goes from 1-10 with 10 being equal to Mark Buehrle's amazing opening day play.
Guy 1: "Wow what a play by Ryan Zimmerman!"
Guy 2: "That's at least an 8 on the Buehrlemeter!"