'Mardi Gras' definitions:

Definition of 'Mardi Gras'

From: WordNet
noun
The last day before Lent [syn: Mardi Gras, Shrove Tuesday, pancake day]
noun
A carnival held in some countries on Shrove Tuesday (the last day before Lent) but especially in New Orleans [syn: Mardi Gras, Fat Tuesday]

Definition of 'Mardi gras'

From: GCIDE
  • Mardi gras \Mar"di` gras"\, n. [F., literally, fat Tuesday.]
  • 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.
  • Syn: pancake day. [1913 Webster]
  • 2. The series of festival events celebrated on {Mardi Gras}[1]. [PJC]