Barry's Bachelor Party On 'The Flash' Finally Got The Flash Drunk & It Was Absolutely Hilarious

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Turns out that The Flash (Grant Gustin) really can do just about anything, including having the most stereotypically disastrous bachelor party ever. Despite Barry's inherent inability to get drunk (because his liver is the fastest liver alive, true story), he really turnt up and got blackout wasted in tonight's hilarious "Girls Night Out" episode thanks to Cisco (Carlos Valdes) creating some kind of super shot for his BFF's bachelor party. Spoiler alert: it worked a little too well, and Barry became every college coed on her first night of binge drinking ever, from announcing his biggest secret (that he's The Flash) to all his new friends (read: rowdy, drunk strangers) at the strip club to sobbing to Joe (Jesse L. Martin) while professing his true love... of chicken wings.

It was one of the funniest episodes of the entire show's run, a true series highlight, especially since poor Cisco tried to plan a quiet night of movies and brandy at home for the man of the hour. New Team Flash member Ralph Dibny (Hartley Sawyer) ended up commandeering the group and taking them all to his favorite strip club instead. You thought Gustin was great at acting like drunk Barry before? This was all new levels of hilarity — and it actually ended up allowing him to do something that both he, and The Flash as a whole, has never gotten to do before.

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"This episode is the first episode ever of The Flash that I did not wear the Flash suit," Gustin tells Bustle along with a small group of press in a Vancouver hotel room late Monday night. "I feel like I'm always doing, all the time, something as Barry or The Flash that I've never done before."

Because Barry got white girl wasted at his bachelor party (with Cisco offering to be the "designated superhero" for the night), when the girls got in some serious trouble at Iris' (Candice Patton) bachelorette party, he was in no shape to suit up and save the day. That allowed the badass females of Team Flash, along with Arrow's Felicity (Emily Bett Rickards), to save themselves in a truly empowering hour. It was all kinds of amazing ... especially since it gave fans a whole hour of wasted Barry.

"It's rare," Gustin agrees with a laugh of seeing Barry turn up. "It was fun. It was like, if we're going to get drunk, let's just be plastered drunk. Like schwasted. So we went as far as we could, [and] I went as far as I could with it, with the comedy of it."

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Because "it was definitely a different side of Barry" than what Gustin usually gets to play on The CW's superhero drama, he had the best time hamming it up. "I feel like we haven't ever seen him like that," he says. "It was an interesting day for sure [filming] in a bar, in a real strip club."

In fact, the whole year has felt like a completely different show than usual for the whole cast, as Barry shed all his baggage from his parents' deaths and stopped carrying the weight of the world on his shoulders. The comedy is back after too many dour and depressing seasons, which is such a relief since The Flash always worked best as the lighter and more fun of all The CW's DC Comics series.

"I don’t want to make it sound like last year wasn't fun, you know?" Gustin says. "But when it gets that serious all the time, it weighs on you. It's been a good time this year getting back to the feel of Season 1 and joking around and having a good time."

And part of that comes with new cast addition and Team Flash member Ralph Dibny (Hartley Sawyer), aka The Elongated Man. Barry will continue to train him moving forward until he becomes a true superhero and joins him in the field.

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"It's fun because I'm missing Julian [Tom Felton] this year," Gustin says. "He's not a replacement but it's nice to have someone to fill that void and to have another guy around," especially in light of Wally's (Keiynan Lonsdale) temporary exit from the series. Calling Sawyer a "young Jim Carrey," Gustin is glad to have someone fill "a needed position" on the team.

But to balance out all the lighthearted comedy comes a truly formidable villain: Clifford DeVoe aka The Thinker (Neil Sandilands). At the end of this episode, DeVoe left his high-tech lair to capture one of the metahumans he created in the season premiere, which is not great for Team Flash.

"Barry starts to get an inkling early that this is going to be somebody serious and we're going to want to nip it in the bud right away," Gustin says. "So Barry's taking it pretty seriously right away. He starts to, before anybody else on the team, know for sure that this is our guy and starts to become a little bit obsessed with getting him, because he doesn't want things to get out of hand again, as they always do."

Despite how carefree Barry has become, he'll start to "unravel slightly for the first time all season," especially since the rest of his team isn't as sure as he is about how serious DeVoe is as a villain.

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All of The Flash's big villains have previously had some kind of personal connection to Barry, but The Thinker is "less about Barry and more about his vision of Central City and how he thinks he can make it better and make the world better," Gustin says of the highly intelligent and mysterious figure.

"[Barry] realizes that it's going to get dirty quick, and before it gets dirty he wants to get ahead of this guy," Gustin says. "And then they start to realize what a challenging foe he's going to be and different than any other we've faced in the past."

And then Gustin drops this ominous warning: "Things are going to take a dark turn quickly in the middle of the year." So enjoy the lighthearted comedy while you can now, because it sounds like it won't last all that much longer.