Mar|di gras «MAHR dee GRAH», or Mardi Gras,
the last day before Lent; Shrove Tuesday. It is celebrated in New Orleans and other cities with parades and festivities.
╂[< French mardi gras fat (that is, meat-eating) Tuesday; mardis < Latin Martis (dies) (day) of Mars, Tuesday; gras < Latin crassus]
Useful english dictionary. 2012.