Sweet Sixteen: the regional semi-finals, to which sixteen teams advance.
Elite Eight: The finals, played on the second weekend of the tournament, with, you guessed it, eight teams still in the running.
Final Four: Four teams. The national semi-finals. See also: A good excuse to throw a March Madness party (scroll down for Tango’s how-to guide.)
Office Pool: Where your significant other is likely to drop more cash betting than you did on your last pair of shoes.
“Boss” Button: A feature rumored to exist on ncaa.com’s 2007 March Madness On Demand site, so workers who spend their days playing the brackets can click it, causing a fake spreadsheet to pop up, and the sound to go down, should a supervisor approach.