Mardi gras /(?)/

Mar·di· gras

Mardi gras

n.
  1. The last day of Carnival; the Tuesday before Ash Wednesday (the beginning of Lent and fasting); Shrove Tuesday; -- in some cities a great day of carnival and merrymaking; in the United States it is especially associated with New Orleans.
  2. The series of festival events celebrated on Mardi Gras{1}.