A carcade is similar to a buscade, but involving many cars rather than buses. This is usually done to celebrate some victory. People usually decorate the cars in question with flags and then yell from the windows and honk loudly while driving through streets.
Carcades happen after a football team wins a big match, or after a political party wins... stuff like that :)
by GraduationBuscadesRDBest August 03, 2010