Answer: lalapalooza

AnswerCrossword Clue
LALAPALOOZAOutstanding example: Slang.
LALAPALOOZAGoldberg caper
LALAPALOOZAHumdinger: Var.
LALAPALOOZAOner
lalapaloozasomething excellent also LALLAPALOOZA, LOLLAPALOOSA, LOLLAPALOOZA