Laissez les bons temps rouler (French pronunciation: [lɛse le bɔ̃ tɑ̃ ʁule]) (alternatively Laissez le bon temps rouler, Laisser les bons temps rouler, and Laisser le bon temps rouler) is a Cajun French phrase literally translated from the English expression "Let the good times roll."
The phrase Laissez les bons temps rouler is a Louisiana expression. This phrase often comes up where Mardi Gras is celebrated, on local television, and on radio.