Fat Tuesday, also known as Mardi Gras, is the day before Ash Wednesday and marks the end of the Carnival season. It is celebrated with vibrant parades, lively music, and delicious food, especially in places like New Orleans. People indulge in rich dishes and sweet treats, such as king cake, to enjoy before the fasting period of Lent begins. The name "Fat Tuesday" comes from the tradition of using up rich foods like butter, eggs, and sugar before Lent, a time of fasting and reflection. Celebrations often include colorful costumes, masks, and beads, creating a festive atmosphere that brings communities together in joy and revelry.