A COTILLION VIP is a person who is invited to a formal DANCE event, usually held in a BALLROOM. The term 'COTILLION' is derived from the French word for 'DANCE, ' and it is typically a formal event with a specific dress code. Deb is a shortened form of the word 'DEBUTANTE, ' which is a young woman making her debut into society. Debs are young women who are invited to the COTILLION as guests of honor. A BALLROOM is a large room specifically designed for dancing, and bal is a shortened form of the word 'BALLROOM.' Therefore, a COTILLION VIP is someone who is invited to a formal DANCE event held in a BALLROOM.