"Because we live in society that's dictated by the male gaze. I want to control the narrative of feminism, okay? I want to show the world that a powerful, strong woman, she can wear anything! Be it a bikini, or a pantsuit."
Joanie to Joe West on her research.
"Girls Night Out" is the fifth episode of the fourth season of The Flash, and the seventy-fourth episode overall. It aired on November 7, 2017.


Having received an ominous threat from her old boss, Amunet, Caitlin fears that her past time as Killer Frost may be back to haunt her. Felicity comes to Central City to help the girls celebrate Iris's bachelorette party, while Cisco, Joe and the guys take Barry out for a night on the town.[src]



Special guest star

Guest starring


  • Matt Afonso as The Weeper
  • Nicholas Bradbury as Dude
  • Osmond L. Bramble as Bouncer
  • Leo Chiang as Yakuza Baddie
  • Liam Hughes as Young Barry Allen
  • Sean Kohnke as Police Officer #1
  • Jonathan Mason as Sweaty Millenial
  • Seiya Matsudo as Yakuza Leader
  • Andre Scott as Officer Jerry
  • Juliana Parreira as Pole Dancer
  • Kat Pasion as Charity
  • Sasha Rojen as Young Iris West
  • Cameron Waters as Drunk Steve


  • Andrew Beha as Restaurant Patron
  • Avery Fane as Club Guy


  • This is the first episode of The Flash in which Barry appears only as a civilian and not as the Flash.
  • Felicity notes that Oliver got shot with an arrow the last time they had a wedding, referencing the events of the Arrow episode "Broken Hearts".
  • In mentioning how she's always wanted a sibling, Joanie notes how it happened "seven Doctor Whos later."
    • Joanie tells Joe that she became a Doctor Who fan after the protagonist became a woman, referencing the current real-life portrayal of the Doctor by Jodie Whittaker.
      • In referencing 7 incarnations of the Doctor, Joanie is accurately also including incarnations not counted numerically, including the Meta-Crisis Tenth Doctor and War Doctor, considering she was born in 1998.
  • Cisco describes photos of baby Barry as having "Ewok-level chub," referencing the species of furry bipeds from the Star Wars franchise.
  • When Ralph goes to describe the West house, Cisco suggests "bitchin," referencing Barry's encoded message in "The Flash Reborn".
  • Harry refers to Ralph as "Disney", referencing the entertainment company.
  • Felicity references the Marvel character the Incredible Hulk in describing Killer Frost taking over Caitlin's mind.
  • When Barry is drunk, he asks Joe why Rose didn't make room for Jack on the door, referencing the climactic scene of the 1997 film Titanic, and its protagonists Jack Dawson and Rose DeWitt Bukater.
  • This is the first episode in which Barry gets drunk. Since regular alcohol has no effect on him, Cisco had to concoct a special drink that could overpower Barry's fast metabolism for his bachelor party. Cisco and Caitlin first did this in "Plastique", but the effects only lasted a few seconds in that instance since Barry had only one shot.


  • When Amunet is fighting Caitlin, Caitlin gets bruised in the fight and the bruises stay visible on her face. When she later transforms into Killer Frost and then back to Caitlin, her bruises are still visible, even though the accelerated healing power that she has when she is in her meta-human state should have healed the injuries.




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