While cleaning graffiti in the park, Mordecai and Rigby see that Muscle Man appears to have paint on his shirt and accuse him of being the guy who did the graffiti. After Muscle Man is caught lying about the paint and a spray can falls from his shirt, Benson fires him along with Hi-Five Ghost (who threatened to quit if MM left). However, Mordecai and Rigby find out that Muscle Man was telling the truth all along, and must catch the real culprit to clear Muscle Man's name.
Under The Hood provides examples of...
- An Aesop:
- When accused of a crime, lying will make things worse for you, especially if you can't back your lie up.
- It's important to have a feasible backup plan if you lose your job. Also, don't be afraid of asking for help when you're really struggling out of pride, because you only screw over yourself and make yourself look pathetic.
- Ain't Too Proud to Beg: Invoked by Muscle Man, who keeps trying to get people to beg to him. By the end though, he's made to beg by Benson after he lies that his comedy career took off and he's taking the park job back because Benson was "begging" him to come back.
- Bad Liar: When accused of vandalizing, Muscle Man claims that the orange substance on his hands was buffalo wing sauce, but can't even pull out a receipt to prove it. Then after a spray paint can the same color as the graffiti falls off of him, he tries to claim it wasn't his, despite the can falling out right in front of Mordecai, Rigby, and Benson. No wonder no one believed him.
- Brick Joke:
- Muscle Man confesses to spray painting, but explains that he was only spray painting Hi-Five's ride, which is later revealed to be a scooter.
- In his stand-up act, Muscle Man says he threw out a couch that smelled like a pile of butts. When Mordecai and Rigby reject the scooter MM tries to sell them, he angrily says he doesn't want it anyway because it probably smells like a pile of butts.
- The graffiti of Rigby on the trashcan reappears at the end of the episode.
- Blatant Lies: Muscle Man keeps lying about how he's doing after getting fired to save face, despite obviously struggling to get by.
- The Cameo: Pops makes a brief appearance as one of the many things Park Avenue painted on.
- Can't Take Criticism: When the crowd heckles him after his "my mom" joke, Muscle Man yells at them and then goes batshit on them after one of them hits him with a tomato.Muscle Man: Aww, you jerks are jerks! You don't even understand comedy!
- Cassandra Truth: Benson doesn't believe Mordecai and Rigby when they say MM didn't do the graffiti because he thinks they're upset for narcing on him.
- Chekhov's Gun: Muscle Man's spray paint is used to set up a trap for Park Avenue, defend against the graffiti monsters he sics on Mordecai and Rigby, and finally, used to force him to confess his crimes.
- Cringe Comedy: Muscle Man's stand up act, where he's mocked and booed because of his "my mom" jokes.
- Digging Yourself Deeper: Muscle Man lying about eating buffalo wings to hide that he was repainting Hi-Five Ghost's ride makes things worse for himself after being accused spray painting.
- Disproportionate Retribution: Park Avenue tries to kill Mordecai and Rigby by having his graffiti monsters eat them after the duo follows him to his domain.
- Eldritch Abomination: Park Avenue's graffiti monsters.
- Even Evil Has Standards: Park Avenue is more than willing to deface public property, but he cares deeply about making art rather than just an unorganized mess. When comes across a messy blotch of spray paint on a public bathroom (which was a trap set by Mordecai and Rigby), he gives a disappointed sigh and says there's no class to the Graffiti.
- Everyone Has Standards: Despite being on bad terms with Muscle Man, Mordecai and Rigby were shocked that Benson fired him for the graffiti. They feel worse when they learn they got the wrong guy.
- Eye Scream: Rigby spray paints a graffiti monster in its eyes on the monster's hand to avoid getting eaten by it.
- Hypocrite: Park Avenue has no problem painting on other people's property, but when someone paints on his shit, he gets upset.Park Avenue: "Come on man, not the coffee table!"
Rigby: "You painted all over the park!"
Park Avenue: "Yeah, but it's different you know, that's what I do! My stuff looks good! You, you just, you're making a mess!" - Hypocritical Humor: Mordecai laughs when Park Avenue paints a crude picture of Rigby on a trash can, but when Park Avenue does a painting of Mordecai making a derpy face on a wall, he punches Rigby for laughing at it.
- Hoist by His Own Petard: Park Avenue tries escaping through a portal he makes, only to get stuck in it.Park Avenue: (to Benson) "Ha! The cops can't catch this! Later, ya bourgeois sucka!"
(spray paints a portal too small for him and gets stuck in it)
Park Avenue: "Aww, man!" - Implied Death Threat: When trying to catch Park Avenue, the duo turn around a corner only to find a huge painting of a knife pointing at them and Park Avenue nowhere to be seen.
- In the Hood: Park Avenue wears a black hoodie, that when pulled back, reveals that he's a living spray can.
- Laser-Guided Karma: Park Avenue gets his living room covered in orange spray paint, then gets stuck in a portal too small for him while Benson calls the police on him.
- Miles Gloriosus: When Benson offers Muscle Man and Hi-Five Ghost their jobs back at the end of the episode, Muscle Man tries to brag about how great their comedian career is going but that they will take their jobs back anyway. Benson, impressed, decides that he'll only hold them back and recants the offer, only for Muscle Man to drop the act and admit that they desperately need their jobs back.
- Not Me This Time: Muscle Man, who's known for pulling pranks on everyone is blamed, then fired for the graffiti on the park bathroom. But Mordecai and Rigby quickly learn that it's really the work of an artist named Park Avenue.
- No, You: When asked by Mordecai to show the receipt for the buffalo wings he supposedly ate, Muscle Man responds with "show us, your receipt!" when he gets caught in the lie.
- Offscreen Teleportation: Park Avenue's M.O. It's later revealed that he's a walking paint can who can spray portals, which is how he keeps getting away.
- Produce Pelting: A audience member throws a tomato at Muscle Man's head when he yells that the crowd doesn't understand comedy.
- Revolutionaries Who Don't Do Anything: When Park Avenue is made to confess his crimes, he boasts about his paintings like he's doing something revolutionary and anti-authoritarian, even though he's just an artistic jerk defacing a public park with obscene paintings.Park Avenue: "I'm hitting the world with knowledge! I'm painting the truth! I'm painting a rebellion! I—!"
Benson: "I am calling the cops". - The Reveal: Park Avenue is a living spray can, who can create portals, has access to a dimension with paintings that can come to life in order to attack intruders, and lives in an all-white apartment with furniture that's invisible to everyone but him.
- Running Gag:
- As Mordecai and Rigby fail to apprehend Park Avenue, graffiti starts appearing nearly everywhere they go.
- Muscle Man trying to get people to beg to him and failing
- The repeated mentions of Wing Kingdom and their buffalo wings.
- Screw This, I'm Outta Here: After Benson leaves them at the end to clean up the graffiti, Mordecai asks Rigby at the end if he wants to go eat at Wing kingdom.
- So Proud of You: Benson says this to Mordecai and Rigby, saying that he's proud of them for coming forward with information on Muscle Man being the spray-painter who's making graffiti around the Park. Too bad he WASN'T the spray-painter.
- Stylistic Suck: Mordecai and Rigby paint a whole wall orange so that Park Avenue would be tempted to deface it, all while they're covered in orange paint and laying back against it ready to grab him. There's also the crappy monster Rigby painted when the duo got attacked by Park Avenue's monsters.
- Tempting Fate: The announcer says before Muscle Man starts his stand up: "Here's a guy, I know you're gonna like!" Needless to say, he was wrong.
- This Is Going to Suck: Skips' reaction after he learns what Muscle Man is going do for a job after getting fired.Skips: Say, where is Muscle Man anyway?
Rigby: Following his "real dream".
Skips: He said that?! Oh, no! - Threat Backfire: When Benson fires Muscle Man, Hi-Five Ghost threatens to leave, thinking that this will convince Benson to change his mind, but he lets him go as well.Hi-Five Ghost: If he goes, I go, too!
Benson: (without hesitation) Okay, see ya!
Hi-Five Ghost: Aww! - Unexplained Recovery: Mordecai and Rigby turn back to normal, despite covering themselves in orange paint when they go through Park Avenue's portal.
- Ungrateful Bastard: Benson makes Mordecai and Rigby clean up the graffiti despite catching Park Avenue and says that if they don't, they can go do comedy like Muscle Man did.
- [Verb] This!:Park Avenue: No class... (begins painting the graffiti when Mordecai and Rigby open their eyes)
Mordecai: Class this! - Weaksauce Weakness: How do Mordecai and Rigby make Park Avenue, who's able to create portals to escape from people and has access to a dimension with living graffiti paints that he can bring to life in order to kill people, confess to vandalizing the park? Simple, Rigby starts spray painting the furniture in his all-white apartment orange.
