lallapalooza

noun Slang.

1. lollapalooza.

noun Slang.

1. an extraordinary or unusual thing, person, or event; an exceptional example or instance.

noun

1. US slang something excellent

n.also lallapaloosa, lallapalootza, etc.; “remarkable or wonderful person or thing,” 1901, American English, fanciful formation. The annual North American alternative pop music concert of the same name dates from 1991.