"Weirdo Gallagher Vortex" is the third episode of the ninth season of the American television comedy drama Shameless, an adaptation of the British series of the same name. It is the 99th overall episode of the series and was written by co-executive producer Joe Lawson, and directed by Kat Coiro. It originally aired on Showtime on September 23, 2018.

The series is set on the South Side of Chicago, Illinois, and depicts the poor, dysfunctional family of Frank Gallagher, a neglectful single father of six: Fiona, Phillip, Ian, Debbie, Carl, and Liam. He spends his days drunk, high, or in search of money, while his children need to learn to take care of themselves. In the episode, Frank discovers Mo is involved in a scandal, while Fiona and Ford fight over her decision in the investment. Meanwhile, Ian seeks answers over his new purpose, while Debbie questions her sexuality.

According to Nielsen Media Research, the episode was seen by an estimated 1.05 million household viewers and gained a 0.39 ratings share among adults aged 18–49. The episode received mixed reviews from critics, who questioned the logic and writing of the episode, particularly over Lip's storyline.

Ian (Cameron Monaghan) finds himself confused over his new purpose. He prays to "Shim", but is frustrated that he does not receive answers. He visits many churches across the city, but is not convinced by the priests' advices. When he asks Debbie (Emma Kenney) over it, she simply tells him he is not "Gay Jesus", telling him "why don’t you stop trying to save the world and save yourself?"

Carl (Ethan Cutkosky) wants to get a recommendation to West Point from a local congressman, Wayne Ubberman (Don Stark). When Veronica (Shanola Hampton) discovers it, she realizes Ubberman was a usual client when she was a dominatrix. She decides to help Carl by dominating Ubberman in his office. Afterwards, Carl receives his letter of recommendation. Fiona (Emmy Rossum) tells Ford (Richard Flood) about her investment, but he is not delighted with the news, as he feels Max may try to scam her. Liam (Christian Isaiah) starts public school, and makes a deal with another student for protection against Sissy, a bully.

Kevin (Steve Howey) discovers that a newspaper named the Alibi as the "rapiest bar" in Chicago. He decides to renovate part of the bar, and gets some customers to sign consensual agreements releasing them from all responsibility. Frank (William H. Macy) continues helping Mo White (Dan Lauria) with his campaign by visiting many houses to get support. While walking, Frank discovers that Mo is carrying an ankle monitor. Mo finally reveals that he is not allowed near schools, as he had to quit the Congress after he had a sexual relationship with a minor, but he claims the girl lied about her age. He served time in prison and is currently in parole. Frank debates whether to continue supporting him, but eventually convinces the Alibi that Mo has served his time and deserves a second chance.

Lip (Jeremy Allen White) is forced to go to the hospital when Xan (Amirah Johnson) breaks her arm. He wants to release her, but the hospital forbids him from doing it as he is not her family or legal guardian. Desperate, he pulls the plug on an elderly patient; while the doctors check on him, they escape the hospital. Debbie gets her revenge at the construction workers after Alex (Ashley Romans) helps her weld their cars. Afterwards, they share a kiss. Fiona returns to the apartment, finding a naked Ford in the bed. He wants to apologize for his behavior, and Fiona gleefully shuts the door behind her.

The episode was written by co-executive producer Joe Lawson, and directed by Kat Coiro. It was Lawson's first writing credit, and Coiro's first directing credit.