[quote=mdk]
It usually refers to the NCAA men's basketball tournament. Sometimes referred to as 'The Big Dance,' or just 'The Dance;' the broader term 'March Madness' also includes the end of the regular basketball season (and the crowning of 'regular season champions' in each conference); conference tournaments (smaller tournaments between teams that regularly play one another); the NCAA tournament (massive, single-elimination championship, which includes all of the 'Conference Tournament' winners and the best teams from the season, for a field of 68 competitors); and also the NIT tournament (played by teams that missed the 'Big Dance,' but still won lots of games -- sort of like an 'honorable mention' tournament).Ironically, the 'Final Four' and the championship game are typically played in early April, because it takes a few weeks to narrow the field.
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I only got a little bit, but I got that it's some bug basketball thing. I'm not supprised I didn't know what it meant, as I have never been too into basketball. But thanks for explaining!