Ooba Babasaama

Ooba Babasaama is the Guild Master of Lamia Scale. Ooba has a loud and rash personality, furiously berating herself and her guild for not winning the Grand Magic Games as well as ordering them to work harder. She does, however, seem to have the guild's best interests in heart, as she wants to establish Lamia Scale as the strongest guild in Fiore, as do her guild's Mages. She has a habit of continually spinning her arms in a circular fashion, and, by twirling her finger, can make other people spin around too, which she does as punishment for her guild members.

(Source: Fairy Tail Wikia)