Gogo Yubari was an assassin.
She was one of the many people who attacked Wayne Slater during his special training. She attacked him with a large Meteor Hammer, which he kicked right back at her, causing the chain to wrap around her neck and choke her.
Behind the Laughter
Gogo Yubari is a character from the Kill Bill series, specifically Kill Bill Volume 1, where she was a bodyguard under the employ of O-Ren Ishii (Lucy Liu), whom Beatrix "The Bride" Kiddo (Uma Thurman) has to fight in order to get to O-Ren, after disposing of the Crazy 88 gang. Despite her young age and apparent fragility, Gogo is a very skilled assassin, but she is ultimately killed by the Bride. Gogo was portrayed in the film by Japanese actress Chiaki Kuriyama.