PRONUNCIATION:

(LOO-loo) 

MEANING:

noun: A remarkable person, idea, or thing.

ETYMOLOGY:

Perhaps from the nickname for Louise. Earliest documented use: 1886.

USAGE:

“I told my students about an incident from my boyhood, my first-ever interaction with a fungus, and it was a lulu.”
Robert Klose; The Three-Legged Woman and Other Excursions in Teaching; University Press of New England; 2010.