Mardi Gras, Saturnalia, banquet, blowout, carnival, do, fair, feast, festival, festive occasion, festivity, fete, field day, fiesta, fooling, gala, gala affair, gala day, great doings, jamboree, kermis, party, picnic, revel, revelment, roughhouse, rowdiness, skylarking, up, wassail, waygoose, wayzgoose, whoop, whoopee