PC Principal travels around the world, destroying gentrifying districts. The town of South Park arms itself just as the gun show comes into town, Jimmy is held captive by Nathan, Kyle protects Leslie and the final showdown will start.
PC Principal Final Justice contains examples of:
- Alien Blood: Blue ooze leaks from Leslie when PC Principal kills her with a devastating punch. Other ads he kills are shown glowing blue from their wound.
- Bar Brawl: PC Principal gets into one in the opening of the episode.
- Big Damn Hero: PC Principal.
- Bond One-Liner: PC Principal to Leslie:PC Principal: You're expelled!
- Central Theme: Nathan explains the overall theme of the entire season:Nathan: What is PC but a verbal form of gentrification? Spruce everything up, get rid of all the ugliness in order to create a false sense of paradise. Only one thing can actually live in that world: Ads.
- The Dog Bites Back: Classi beats the crap out of Nathan when he slaps her for speaking out of line.
- Dope Slap: This backfires on Nathan, when he tries to use it on Classi as he would Mimsy, and gets his ass kicked because of it.
- Everyone Is Armed: The main Running Gag for this episode is that absolutely everyone in town has a gun.
- Get Out!: Randy gives a speech that makes the Whole Foods store leave like it's an alien ship.
- Gilligan Cut: At the beginning of the episode, when Kyle tells his friends that they have to get guns, Cartman asks about how they are gonna get guns. The scene then cuts to later, when the boys have their guns, but their origin wasn't discussed (it's later implied that they got their guns from Stan's uncle Jimbo).
- Good All Along: PC Principal turns out not to be the bad guy, but online living ads are.
- Heel–Face Turn:
- PC Principal's still a PC bro and an extremist, but he now knows that there are people (or living ads) who will hijack social justice for their own ends. He seems to be more tolerant and calms down in later seasons.
- Classi gets one too when Nathan gives her a Dope Slap just as he would with Mimsy, only for Classi to retaliate with a No-Holds-Barred Beatdown and decides to help Jimmy take down the ads.
- Heel Realization: PC Principal seems to have had one offscreen after realizing he was being used by the ads. Though he is still a PC Bro he appears to be more sensible now, as he's come to the conclusion that all of humanity is being oppressed.
- The Hero: Jimmy's ability to recognize news from Ads make him immune to their influence to some extent, and at the end of the episode he was the one that revealed Leslie and the Ads' conspiracy to the whole town of South Park.
- Hooker with a Heart of Gold: While Classi is far more aggresive than the usual portrayal of the trope, she has a noble heart, as she helps Jimmy take down Leslie and the ads.
- Irony: Mr. Mackey set up Principal Victoria since he was tired of being bossed around by her. PC Principal, her replacement, was far bossier with Mackey, and Mackey was scared shitless of PC Principal.
- Karma Houdini: Despite being the main person behind essentially all of the changes to South Park and acting like a royal Jerkass for most of the season, Randy seems to suffer little to no punishment for his actions aside from Jenner beating him up in a scene for a completely unrelated reason. In fact he is even praised for running the Whole Foods out of town, despite the fact he was the reason it was there to begin with.
- Leaning on the Fourth Wall: A minor example. Mr. Mackey exclaims that he assisted Principal Victoria for 18 years, which is how long the show's been airing when this episode came out.
- Mexican Standoff: Everyone in South Park gets armed to the teeth. Gets taken up to eleven at the Gun Show with everyone pointing guns at everyone!
- Remarkably, even though guns are prominently featured in this episode and is a big part of the plot, only one bullet was fired, and it was by PC Principal when he attacked the Russians in the beginning, which had no relation to the gun subplot.
- Mind Rape: It turns out PC Principal is a real person, not an ad. The ads created that fake ad featuring him and Leslie in order to confuse him. Also Leslie does this to Kyle when she told him that PC Principal, Randy, and Stan are the Enemy and are turning South Park's residents against each other.
- My Nayme Is: "Classi," with an "i," and a little dick hanging off the "C" that bends around and fucks the "L" up the A-S-S. As seen here
◊. - Noodle Incident: Randy knows who Classi is.
- Oh, Crap!: Nathan when he realizes Classi won't take his abuse the way Mimsy does.
- Oh No You Didn't: Pretty much what Classi says about Nathan slaps her.Nathan: Shut up, Classi! (hits her)Classi: Oh, heeeelllll no!Nathan: What?Classi: Oh hell no, yo' Down syndrome ass just slapped me! I'mma break yo' dick off!
- Pre-Mortem One-Liner: PC Principal, right as he is about to kill Leslie:PC Principal: You're expelled.
- Punctuated Pounding: When Classi beats up Nathan:Classi: (POW!) I will bust yo' fuckin' ass! (POW!) I will bust yo' fuckin' nose! I ain't no Mimsy, asshole! (POW!) I'm a classy bitch! (POW!) And I do not... (POW!) want ads... (POW!) controllin' my news! (POW!)
- Shout-Out: During the Bar Brawl at the beginning of the episode, PC Principal gives an Ice-Cream Koan based on the Voight-Kampff test from Blade Runner:PC Principal: An African-American flips a turtle over on its back. A transgender Filipino comes and sees the helpless turtle baking in the sun. What color is the Filipino's father?
- Space Whale Aesop: Being PC and fighting for social justice can be a good thing, but we must also fight against living online ads that are attempting to hijack social justice to create a world only they can live in.
- Spanner in the Works: Jimmy's "PC stands for Pussy Crushing" story in the Super School News was what made PC Principal doubt himself enough to question things, straying away from the Ads' plans for him.
- Spoiled Brat: Cartman wanted to kill his own mother because she told him to go to bed.
- Status Quo Is God: Averted. PC Principal has been asked to stay as Principal of the school and Mr. Garrison is still running for president.
- Take That!: This episode seems to portray how Anti-Gun people seem to believe how if everyone armed would act. It also attacks America's obsession with guns as the gun show is eerily similar to a dog show with people treating guns as pets.
- Therapist in Therapy: Discussed. Mr. Mackey got Principal Victoria fired because he was tired of always being bossed around by her. When asked why he didn't just talk to her about it, he claims that it's because nobody ever listens and that everyone just expects him to listen to their problems, to which Gerald professes that maybe they all should've realized that sometimes even a counselor needs counselling.
- Took a Level in Badass: Liane forces Cartman to go to bed at gunpoint.Liane: Eric, it is time for night-night!
- Violence Really Is the Answer: Jimmy says that guns are never the answer, but admits that it would've been nice to have one when Leslie betrayed and nearly killed him.
- Ironically, anyone who pulls a gun on somebody winds up talking things through with them.
- We Will Meet Again:Leslie: Every time you block us, we get smarter. Every time you try to stop us, we are more. If one plan fails, we will find another. You will never be rid of ads.
- Wham Episode: Oddly, this episode qualifies because of what didn't happen—specifically, the Status quo did not return at the end, setting up the possibility of a multi-season arc.
- What Happened to the Mouse?: The fate of the PC fraternity members (who mysteriously vanished during the previous episode) is left unknown.
