Fat Tuesday is Mardi Gras, the festival New Orleans, Louisiana, is famous for. “Gras” is French for fat and “Mardi” is French for Tuesday.
The annual festivities start on January 6, the Twelfth Night Feast of the Epiphany, when the three kings are supposed to have visited the Christ Child, and build to a climax on Mardi Gras, or Fat Tuesday, which always occurs on the day before Ash Wednesday. The parties and parades will continue until Lent begins at the stroke of midnight on Tuesday.