Umpires call Aaron Boone “Karen” in private, an anonymous source close to the MLBUA tells NYP Sports:
“In umpiring circles, they call him “Karen Boone,” a nickname they adopted from an old tweet by social media personality Jared Carrabis,” the source says.
“They also joke that they don’t complain more to the league about Boone because if he gets fired, they’re probably doing the Yankees a favor. Some would argue our umps hate Boone more than his fans.”