Yeet was a pirate of the Meerian species. During the High Republic Era, she served the Nihil marauder organization as a Strike, a rank within Kara Xoo's Tempest (a division of the Nihil under Tempest Runner Kara Xoo). Yeet was known for a history of unfortunate incidents involving new Nihil recruits. In 230 BBY, she arrived on the planet Dalna, which served as the temporary base for Xoo's Tempest, and escorted Avon Starros, a girl, along with other abducted children, from the Poisoned Barb, Xoo's flagship, to the planet's surface. On Dalna, Yeet and other Nihil members began the process of claiming children for their respective Strikes, planning to train them for the purpose of bringing glory to the Nihil. Later, in 230 BBY, Yeet, along with fellow Nihil member Deva Lompop, assisted in the evacuation of Avon from the Starlight Beacon space station as it underwent destruction.
Within the Nihil marauder group, Yeet was a Meerian pirate who held the position of Strike, the lowest hierarchical rank, in the Tempest of Kara Xoo's, Kara Xoo's Tempest. Doctor Zadina Mkampa, a Nihil scientist, noted that Yeet had a history of tragically losing new recruits. In 230 BBY, Yeet arrived on the planet Dalna in the Outer Rim, the temporary base of Kara Xoo's Tempest, aboard Xoo's flagship, the Poisoned Barb. Yeet, a Strike Squib, entered the Poisoned Barb's cargo hold and aimed a blaster at a group of children who had been kidnapped to become Nihil recruits, telling them to follow her off the vessel. She then led them to the surface, where other kidnapped children were waiting to join the Nihil.
She escorted the children to a platform and gathered them together, where Xoo informed them that they would need to prove themselves worthy to become recruits who would bring honor to the Nihil. Yeet and Squib approached Avon Starros, a girl who had been kidnapped from the Outer Rim planet Haileap, and her companions, claiming them for their Strike. Deva Lompop, another member of Xoo's Tempest, and Doctor Mkampa told them they could have all of them except Starros, as they wanted her to be Mkampa's assistant. Several days later, Yeet taught Petri, a boy abducted from the Colonies planet Hynestia, how to operate a blaster and subsequently took him on a Nihil mission.
At some point, Yeet joined the personal team of marauders serving Senator Ghirra Starros, Avon's mother, who had allied herself with the Nihil. During the destruction of the Starlight Beacon space station in 230 BBY, Ghirra dispatched Yeet and Lompop to evacuate her daughter from the station. Although Avon initially declined to leave with them, she eventually agreed after they assured her that her friend, Padawan Imri Cantaros, who had concealed his identity as a Jedi, would be allowed to leave with them and relocate to a safe location. In 228 BBY, Avon and Lompop discussed the events of the day Starlight Beacon was destroyed, including Yeet's involvement in evacuating Avon.
Yeet made her debut appearance in Justina Ireland's 2021 junior novel, The High Republic: Mission to Disaster, which was released as part of Phase I of the Star Wars: The High Republic multimedia project.