Depends on your use... According to Wikipedia, proposed Etymologies include: 1. The Greek words "Ola Kala" meaning "everything's good" 2. The acronym of the "comically misspelled" oll korrect 3. The Choctaw word okeh 4. The abbreviation for the state of Oklahoma turned into a popular catch phrase in 1866 5. The Wolof and Bantu word … Read more