What are some nicknames for Mardi Gras?

Mardi Gras is "Fat Tuesday" - the day before Ash Wednesday. Many Christians will fast or go on a reduced diet for the 40 days of Lent, the period between Ash Wednesday and Easter.

As a sort of "last hurrah" before the fasting of Lent, many cultures have a rowdy feast the day before; "Fat Tuesday", or in French, Mardi Gras.