Fat Tuesday
Fat Tuesday is Mardi Gras, the festival New Orleans, Louisiana, is famous for. "Gras" is French for fat and "Mardi" is French for Tuesday.
Fat Tuesday always occurs on the day before Ash Wednesday. The parties and parades will continue until Lent begins at the stroke of midnight on Tuesday.
Mardi Gras is also known as Shrove Tuesday. Shrove Tuesday gets its name from the ritual of shriving that Christians used to undergo in the past. In shriving, a person confesses their sins and receives absolution for them.
Fat Tuesday is something of a "last call" before the expected reflection and abstinence of the Christian Lenten season. Lent is the forty day period leading up to Easter.