As I was on my ride in to work this morning, I flipped on Boomer and Carton on WFAN here in New York. Upon listening to audio of Joe Girardi's postgame interview after a rousing, 14-inning victory over the A's, he referred to a member of his bullpen as "Flaco".
By using my astute command of the Spanish language, I quickly realized that "Flaco" translates to "skinny", or "slim". Apparently, this is the nickname given to 96 pound relief pitcher Edwar Ramirez. It looks as though Joe Girardi went out and grew himself a personality this winter. No word on whether he calls CC Sabathia "Gordo".