- Adaptation Displacement: There's quite a lot of people who don't realize that Dr. Elmo has a lot of Christmas songs besides the one which spawned this special. Many of them, such as "Grandma's Killer Fruitcake," appear in the special, but some viewers mistakenly assume they are original to it.
- Alternate Character Interpretation:
- Did Santa really not know who Grandma was? Or was all this just a Batman Gambit scheme to get Cityville, and the world, to better appreciate him by setting himself up as a scapegoat for Cousin Mel?
- Grandma refusing to go with Austin Bucks' deal. Was it simply because she didn't want to sell the property, or did she understand selling the business for one big lump sum (even if it was a few million dollars) wasn't a good idea in the long term given her family members aren't exactly a bunch of brain surgeons and would've probably squandered the cash.
- Americans Hate Tingle: This special, much like the song which inspired it, is unpopular in Canada, to the point where it had only one airing on a Canadian channelnote .
- Big-Lipped Alligator Moment: Every musical sequence, although one has the excuse of Grandpa being a Cloudcuckoolander. The only song that truly has much connection to the story and is actually referred to is the title song.
- The E.T. reference that lasts for all of ten seconds when Jake meets the elf in his room.
- Designated Hero: Grandma Spankenheimer. As pointed out by The Nostalgia Critic, the property her store is built on is worth several million dollars. That said, by holding out for as long as she did, Grandma is then given a better offer when Austin Bucks proposes turning the store into a franchise. This not only allows her family to keep the property but still gets them a lot of money. And they can keep earning money. Grandma's refusal ended up making sure her family was set for life.
- Ear Worm: The Villain Song is the bad kind.
- Ensemble Dark Horse: Cousin Mel, and alongside her I.M. Slime due to their Les Yay and memetic statuses.
- To a lesser extent Grandma, on the grounds she's one of the few characters people like unironically, being funny, sweet, snarky, unafraid to let people know when she's pissed off, and just all around a Cool Old Lady.
- Evil Is Sexy: Cousin Mel.
- Her lawyer, I.M Slime isn't bad looking either.
- Heartwarming Moments: It may have been random, but there's something oddly endearing about Grandpa's song, wherein his supposedly dead wife is being comforted by deceased celebrities in Heaven.Grandpa: Grandma's spending Christmas with the super stars
Since that reindeer ran her down that fateful night
Grandma's hanging out with all those late great stars
For the heavenliest Christmas of her life!
- How close Jake and Grandma are.
- Idiot Plot: The excuse that Santa gives as to why he didn't bring Grandma back is because since she has amnesia they don't know who she is. That is a really crappy excuse seeing as how after they made sure she was okay, they could've just come back to the same spot she was run over, and asked the people nearby as to who this woman is. Instead he just leaves her at the North Pole for an entire year, and apparently during that whole time doesn't check missing persons reports to try to figure out who she is. Kind of makes you wonder if the court was right to let him go.
- Let's not forget the fact that he's Santa. He knows the name, location, and goodness/badness of everyone in the world. He should have known who Grandma was immediately upon seeing her. They could have avoided this massive Plot Hole if they had made it so that Santa's knowledge is limited only to children, but no, when he meets Austin Bux face-to-face, he names him and tells him of a present he wanted as a kid to prove that he's really Santa. This gives him absolutely no reason to not know who Grandma was.
- Les Yay: It's almost impossible not to think Cousin Mel and I.M. Slime are a couple even if Mel expresses attraction to Austin Bucks.
- Memetic Mutation: No pantalones.
- The entire "Grandma's Gonna Sue the Pants Off of Santa" song, really. Watching it is easier than explaining it.
- "I'd rather sing!"note
- Moral Event Horizon: The fact that Cousin Mel was perfectly willing to poison innocent strangers just to get Grandma to sell the store put her over the line.
- Nightmare Fuel: As undoubtedly cheesy as this movie is, it's still kind of unsettling to imagine seeing a beloved grandparent be struck down, and then disappear for over a year with no one willing to believe you when you tell them what happened.
- Older Than They Think: In the music video for the song, Grandma also went missing after she disappeared outside the family home, and the scene cuts to the cops obtaining hoof marks and showing them to Santa (who's in handcuffs), implying her death. This, too, turns out to be a Disney Death, as toward the end of the video, Grandma slides down the chimney to their surprise, alive and well, but also fazed, and delivers her line in the end of the final verse: "They should never give a license / To a man who drives his sleigh and plays with elves."
- So Bad, It's Good: The voice acting sounds, at times, incredibly stilted and several characters were given actors that aren't well-suited for the part; the jokes and puns are almost always groan-inducing; and the animation isn't anywhere near as fluid as it could have been. Even so, it's really hard to dislike this special, Adored by the Network notwithstanding, mostly because of issues with the production.
- Special Effect Failure: In one scene in Austin Bucks' office, the man himself appears to be almost double the size of a normal human in one shot.
- What an Idiot!: After spending so much time with an Amoral Attorney, you'd think Cousin Mel would know better than to just suddenly confess literally EVERYTHING. Or at least when they still can't actually prove she was connected to the evidence found.
- The Woobie: Jake and Grandma.
- Jake, because his validation in believing in Santa Claus is immediately followed by Santa and his reindeer running down his grandmother. His family stops him from going out to help Grandma, and when they do let him out, she's gone. This is followed by a year of no one except his senile grandfather believing him about what actually happened, the police are no help, and it's ultimately down to Jake to carry on the search by himself because no one will help him.
- Grandma, of course, for not only getting run over by Santa, but spending the following year with a horrible case of amnesia to the degree that, not only can she not remember anything before the accident, she can't even form memories that last for long.
YMMV / Grandma Got Run Over by a Reindeer