CF : A commercial endorsement
Chuseok : A Harvest Festival celebration, similar to Thanksgiving in America.
Comeback Stage : The first performance in a music program for the promotion of a new title track or single. There is no minimum time wait following the promotion of the previous title track. An artist usually has a special comeback performance on each of the music shows. During that stage, they are usually allowed to perform a second song.
Chocolate Abs : Abs that have strongly defined lines, like blocks of chocolate
