Bart tries to save his new cow from the slaughterhouse and ends up nearly married to a hillbilly girl named Mary.
- Bait-and-Switch: During the montage of Bart and Lou bonding, Bart is handling a branding iron, making it look like he's about to brand Lou...but he's actually making a collar sign for him.
- Exactly What It Says on the Tin: Transclown-O-Morphs. As their theme song says, the transclown-o-morphs are "transforming clowns that morph".
- Meaningful Name: Mary got her name because she's the one her parents expected to get married. Yes, the Spucklers were that crazy.Cletus: Isn't that right, Stabbed-in-jail?Stabbedinjail: (wielding a whittled spear) We'll see who stabs who.
- Merchandise-Driven: The transforming clowns that morph use their show to sell their cereal. When they're losing, one of them says it's because someone isn't buying it.
- Name That Unfolds Like Lotus Blossom: One of the Spuckler's kids is called Stabbed-in-jail.Cletus: We always figured someday Mary would marry. That's why we called her Mary. We name all our kids after what we think's gonna happen to 'em. Ain't that right, Stabbed-in-jail?
Stabbed-in-jail: [sharpening and wielding a spear] We'll see who stabs who.
- Shout-Out: Tress MacNeille gets mentioned a couple times in this episode, which leads to a Celebrity Paradox—the woman who voices dozens of characters on The Simpsons is famous enough In-Universe that Bart and Homer can recognize her voice.
- Show Within a Show: Bart and Lisa watch an animated show Transclown-O-Morphs.
- Spit Take: Upon hearing about Bart getting married, Homer's sock puppet does this.
- Take That!:
- "4-H: It's still a thing."
- When Bart is bundling manure, the bundles come out as Pirates of the Caribbean 3.
- Similarly, the opening gag is a dig at Merchandise-driven franchises such as Transformers, and product placement in general.
- The way cows are farmed takes a pretty hard hit.Bart: Wow, Lou, what happened to you? You got fat.
Lisa: Of course he got fat. The food he ate was laced with growth hormones.
(Lou licks Bart's arm, which then grows hairy)