YMMV / Yin Yang Yo!

• Accidental Innuendo:
  Yuck: You can't beat my pants! Thanks to Yin they're in a very naughty mood.
• Anvilicious: Mocked with The Lesson, a villain hero who tries to hammer home aesops into people's heads (mostly Yang) with little success because even the people who agree with him (Yin) think he's an out-of-touch, overbearing jerk.
• Americans Hate Tingle: The show is universally despised in France, though nobody seems to know why; of course, the stink aardvarks could provide a clue though that's just speculation as it is.
• Awesome Music: The opening title card music is pretty impressive.
• Base-Breaking Character: Opinions on Coop is always one or the other, and never in-between. On one hand are those who think his antics make him awkward and endearing and want him to be Yin's love interest. On the other hand, there are those who despise him for being absolutely annoying because of his Stalker with a Crush tendencies during the first season and the fact that majority of the fanbase find Yuck to be a much better match for Yin than he will ever be.
• Can't Un-Hear It: All you can hear is Stan Smith when Seth MacFarlane voices the Manotaur.
• Die for Our Ship: Coop is hit by this to satisfy the ire of Yin x Yuck shippers.
• Ensemble Dark Horse: Yuck - his overall screen time is just seven episodes and yet he's easily the most popular character, and all around most popular villain, to have come out of the series. He's also commonly shipped with Yin post the events of "Falling Yin Love" with fans exploring the high possibility he has genuine romantic feelings for her. This was further enhanced with "Upstanding Yuck" which reveals much of his Hidden Depths and a deep seated desire to be a better person which is sadly cut short by Yin and Yang's interference but completely certifies him as The Woobie.
• Evil Is Cool: Ultimoose on his own is one of the most pathetic villains in the series; however, in "Deja Foo" Ultimoose briefly gains the power of the Nightmaster and the results are both awesome and a bit terrifying: not only does the "Nightmooster" destroy the town, but he is so powerful that he effortlessly defeats Yin & Yo in a matter of seconds, all while retaining his Awsome Ego. In fact, the only way Yang was able to beat him was reversing time itself so he never got the power in the first place; naturally, in every appearance afterward Ultimoose is back to his wimpy self, but it was fun while it lasted.
• Fan Nickname: Some have given Yuck's nicer personality in "Upstanding Yuck" the name Oliver; also, Yin's evil side in "Gone A Fowl" is sometimes called Eve.
• Fanfic Fuel: The show offers a plethora of these, but perhaps the most notable is the twins' mother, which was teased in one line of dialogue at the end of the series finale, "Yin Yang Who?"
• Foe Yay Shipping:
  • Yin and Yuck has more or less dominated the fandom's shipping realm from the events of "Falling Yin Love" alone. Not only do Yin and Yuck date, albeit with Yuck in disguise, but the two canonically share a First Kiss-the only mouth to mouth one in the entire series runtime at that. But the real signifier of their being some genuine romantic feelings between the two of them is Yuck having nothing short of genuine enthusiasm on his face when Yin, only trying drain his Woo Foo with the same gloves he used on her, says how she "still wants to be close to him".
    Yin: Oh Yuck, I don't care if it was all a trap. I still wanna be close to you.
    Yuck: (completely dropping is defenses and leaning closer in anticipation) Y-You do?
  • He also has an interesting habit of involving Yin in some way in his plans. This especially happens in "Falling Yin Love" but there's also "Camp Magic Pants" where he devises for Yin to become evil by using her magic for wrong purposes so she can touch the golden pants statue and allow him to control it. He even sends her a sarcastic thanks.
  • A subtle case in "Upstanding Yuck" but when Yuck, now reformed and dedicated to doing good, arrives to save President Muffin's kitten, he stops Yin mid attack just to ask if she's lost weight which she's genuinely flattered by. The conversation would have easily carried on peacefully if Yang didn't interrupt.
• Germans Love David Hasselhoff: This show has a decent following in Latin America.
• Heartwarming in Hindsight: Lots of moments across the show become sweeter after the finale revealed that Yo is Yin & Yang's father: for example, way back in episode one when Yo is stroking Yin's head and comforting her when Yang briefly left to join Ultimoose's dojo.
• Hilarious in Hindsight:
  • In one episode, Yin and Yang discuss how absurd it would be for a guy to get super powers after being bitten by a radioactive spider. A few years later, Disney would own that guy, and all of Marvel Comics.
  • Let's see: An animated series on a Disney block revolving around two siblings living with an elderly father figure and settling their differences while encountering monsters.
  • During their first battle with Kraggler, he gets Yang to back down by asking if he'd really hit someone old enough to be his grandfather. Considering he is roughly Master Yo's age, that actually makes him old enough to be their father.
• Ho Yay: Roger Jr's secret desire to be Yang's friend turns into this at times, especially in "Splitting Hares".
• Jerkass Dissonance: Yuck's universally loathed in-universe but you wouldn't be able to tell given the amount of love his fanbase has for him.
• Jerkass Woobie:
  • Carl. He’s often beaten by the duo through insults, his brother constantly rubs his comparative success in and their mother blatantly prefers said brother, making Carl really pitiable.
  • Sure, Saranoia may be obsessed with Yin to the point of insanity, but that’s a result of Psychological Projection caused by her abusive father favouring her brother.
• Les Yay: Saranoia's obsession with Yin certainly leans into this, especially prominent in "The Truth Hurts". Also No Yay since Saranoia is an adult and Yin is a child and The Truth Hurts involves Saranoia pretending to be a popular pretween girl named Miranda to convince Yin into becoming Sweat Sisters, which is where they would run in place, work up a sweat and rub the sweat on each others eyebrows.
• Memetic Loser: Ultimoose is one in-universe, and for good reason. Baring a single episode (see Evil Is Cool), Yin & Yang's fights with Ultimoose tended to be one sided in their favor, as Ultimoose was only every really threat when he is backed up by another villain (namely The Nightmaster) and would often practically defeat himself due to his stupidity and inability to keep his mouth shut. For reference, in the very first episode of the show, Master Yo effortlessly beats him off-screen. With all this in mind, it's no wonder the series finale includes a joke where Yin & Yang pass on fighting him, reasoning he's "more of a threat to [himself] than society".
• Moral Event Horizon: Ultimoose once he becomes the Nightmooster in "Deja Foo": he not only destroys the entire town but he kills Master Yo and Yin by burning them to death; to add insult to injury, he does it right in front of Yang.
• Popularity Polynomial: Not the show itself but the character Smoke has recently gained a large number of fanart (most of them NSFW-ish) on sites like Deviantart and Tumblr.
• Popular with Furries: Due to the Funny Animal cast, this was to be expected at least somewhere.
• Ron the Death Eater: Lina at times gets this treatment: although she's simply a Tsundere character with a sassy personality, she's a generally nice girl and helps her friends in saving the world later; but to the fans, she is a selfish, uncaring bitch who wants Yang all to herself - fanfictions often depict her as a terrible girlfriend, making sure that Yang's romance with the writer's character can occur with Lina out of the way.
• The Scrappy: Carl's mother Edna is despised by the fandom for her shrill-attitude and never treating Carl with any sort of respect. Is it any wonder Carl is a Jerkass Woobie?
• Self-Fanservice: Yin receives plenty of fanart depicting her as a well endowed teenage girl in skimpy or tight clothing; this mostly started to spring up after her Plot-Relevant Age-Up in one episode where she becomes an attractive teenager.
• Suspiciously Similar Song:
  • Yang and Carl are stuck together and an ersatz version of the theme to The Odd Couple plays.
  • There's a chase scene wherein the music is a near-miss of "Yakety Sax".
  • In "Finding Hershel", as Yin and Yang watch Hershel there's a Jimmy Hart version of "Spanish Flea" playing.
• They Wasted a Perfectly Good Character: Ever since the first episode he appeared in, fans instantly loved Yuck to the point they wanted him to be a part of the main cast or at least be involved in far more episodes; though he isn't entirely wasted, out of the fairly lengthy seasons, he only appears in six total.
• Unintentionally Sympathetic:
  • "Welcome to the Dark Tomorrow" plays off Yang as being completely in the wrong for his role in the resurrection of Eradicus... completely skimming over the fact that he was manipulated into it by Eradicus' own minions posing as elder Woo Foo spirits with a mission to prevent the catastrophe. Not to mention that the supposed importance of their mission was hammered into Yang's head through the Family-Unfriendly Deaths of his sister and mentor/father-figure, which he was forced to watch, so while it was partially motivated by selfishness in wanting the glory of being a hero, he was also trying to save the lives of his family and friends.
• The Woobie: The show has a handful of them.
  • Carl could be considered this, while he is a villain and plots to destroy Yin and Yang, he can be sympathized with due to being treated horribly by his older brother and failure to impress his mother and he could probably be only trying to destroy Yin and Yang to impress his mother.
  • Yuck in "Upstanding Yuck". All he wanted was to make friends with Yin and Yang and to prove he had became a good person. Throughout most of the episode, he suffers beatings from Yin and Yang without once getting mad at them. It's only until the end that he cracks and goes back to his evil ways. Still, you can't help but feel bad for him.
  • Resident Butt-Monkey and Chew Toy Dave rarely if ever gets any respect from anyone, including his quote-unquote friends; although, opinion on him has changed after he discovered his power to control nature: bonus points for taking part in the battle during the series finale.
  • Roger Jr. may be somewhat of an ass to the twins (and hell, to anyone, really), but deep down he admires Yang and only wants to be friends with him; it works, but that doesn't stop the latter from making a fool out of him at every other opportunity.
  • Yin and Yang are also this in "The Confidence Game" where the majority of the episode has the two of them being horribly beaten by Eradicus and his Quirky Mini Boss Squad in a week long losing streak: they are at least 11 or 12 years old and their enemies are obviously older than them; also, the latter group seem to have an unsettling joy in beating the former.
    • And then their master and father figure fakes his death in front of them to force them to fight for themselves.

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