There are quite a few running gags in the show. Below is a list of them and who does it.
Generally used[]
- Someone saying, "Curse you, (something)!"
- Someone saying, "Aaaaaah! It burns!"
- Someone saying, "Yay (something)!"
- Someone saying, "Sure, let's go with that."
- Tibecuador being shown or mentioned after its creation.
- The characters constantly getting eaten.
- Referencing the Internet or cell phones or other forms of modern technology.
- Using the Gilligan cut trope.
- During Fairly Odder, there's a running gag of characters constantly falling into bushes and commenting how they fell into a bush.
- Another one that happened during the series is whenever an offscreen crash occurs, expect to hear that poor cat to the point where Vicky takes issue with it at the beginning of "Fairies Away! Part 1".
Timmy[]
- Making dangerous extreme wishes.
- Getting angry after Cosmo and Wanda reveal a wish that is against the rules.
- Breaking the rules, almost losing his fairies in the process.
- Saying that the things he wishes for come from the internet.
- "What could possibly go wrong?"
- Claiming he's learned his lesson only to forget it afterward.
- Being selfish.
- Freaking out whenever facing something strange.
- Being mistakenly called Tommy.
- Being mistaken for a scarecrow.
- Episodes focusing on Catman after season 5 have Timmy actively dreading seeing him again.
- Someone pointing out Timmy's pink hat.
- Saying "I wish everything was back to normal!"
- Someone mocking his big teeth.
Cosmo[]
- Agreeing with Timmy on something that Wanda tries to convince them not to do.
- Being called an idiot or moron by everyone.
- Paying more attention to nickels than to anything else.
- Mentioning food.
- Flirting with or having interests in other females.
- Talking to inanimate objects.
- Mistaking wishes with something else.
- The various disasters he caused while at the Fairy Academy, such as:
- Summoning a red dragon named "Snowball" that burns down everything.
- Sinking Atlantis nine times.
- Being an incredibly bad shot.
- Getting jealous of Wanda's flirting.
- Losing his wand.
- Nagging with Wanda.
- Saying something smart for a quick second, and sometimes being complimented on it.
- Getting scared by Super Toilet.
- Forgetting his and Wanda's anniversary.
Wanda[]
- Nagging at Timmy and Cosmo.
- Getting hurt by Cosmo's ignorance.
- Nobody pays attention to her, especially when she is right.
- Losing her wand.
- Nagging with Cosmo.
- Being angry at Cosmo when he has interest in other females.
- Telling Cosmo or Timmy to not do anything stupid whenever she leaves.
- Everyone calling her fat.
- Having an obsession with chocolate.
Poof[]
- Saying, "Poof, poof."
- Crying.
Denzel Crocker[]
- Going crazy when saying "Fairy godparents!".
- Giving Students F, even creating "Super F".
- Being pointed out that his ear is on his neck instead of his head.
- Thinking ordinary people/stuff are magical and not recognizing the actual magic around him.
Vicky[]
- Doing anything for money.
- Calling Timmy a "twerp" and tormenting him.
- Thunder and lightning accompanying the saying of her name.
- Her head changing into various objects at the end of the opening sequence after saying her line "Yeah, right!"
- Writing "Vicky was here" on the wall.
- Wielding a chainsaw or another dangerous weapon.
- Hiding the fact that she's evil to Timmy's parents.
- Getting arrested.
Jorgen Von Strangle[]
- Abusing Wanda, Cosmo, Binky, and others.
- Blaming Wanda for what isn't her fault.
- Punching Cosmo when he does something too stupid.
- Sitting and farting on godparents and godchildren to show discipline and power.
- Hitting Binky simply because he is angry or anxious.
- Showing a close up of his butt.
- Flexing his muscles.
- Laughing at the expense of others.
- Whenever he appears, it is usually similar to a nuclear explosion.
Juandissimo Magnifico[]
- His shirt ripping and later a new one replaces his ripped shirt.
- Flexing his muscles.
- Having a rose come out of nowhere and into his mouth.
- Flirting with Wanda.
Chester McBadbat[]
- Using his teeth and braces to get himself out of scrapes.
- Mentioning how poor he is.
- His regular consumption of possie.
- Owning a fairy and proving to be an amazing fairy godson.
A.J.[]
- Being messed up on something or getting an F because of Timmy.
- Mentioning his lack of hair.
- Getting an A and gloating about it for a very long amount of time.
Mr. and Mrs. Turner[]
- Completely ignoring Timmy, and going out somewhere (dancing, dinner, etc.).
- Whenever Mr. Turner sees Sheldon Dinkleberg, he angrily says "Dinkleberg".
- Overpaying Vicky.
- Mrs. Turner's continuous failure at raising a garden.
- Mrs. Turner's poor cooking.
- Mr. Turner's love of pencils.
- Mr. Turner's love of egg-nog.
- Their first names being cut off right before being said.
- Mr. Turner going around town causing destruction.
- Mr. Turner crashing his car.
- Mr. Turner refusing to wear pants.
- Mr. Turner screaming like a girl.
Mama Cosma[]
- Making attempts to get Cosmo to leave Wanda.
- Treating Cosmo like a mama's boy.
Trixie Tang[]
- Incorrectly referring to Timmy as "Tommy".
- Yelling "SECURITY!!!" or "POLICE" when Timmy tries to get near her while near other kids.
- Feeling peer pressured.
Tootie[]
- Flirting with Timmy.
- Crying whenever Timmy rejects her.
Doug Dimmadome[]
- Introducing himself or something that starts with "Dimma-" and someone else repeating it as a question, and him repeating whatever he said.
- Often saying "That's right!" or "Right!"
- The top of his hat will always be offscreen no matter how much the camera zooms out.
Anti-Cosmo[]
- Calling someone 'Clarice'.
- Using a high vocabulary that confuses others.
Anti-Wanda[]
- Holding or eating things using her feet.
Foop[]
- Calling someone 'Clarice'.
- Being subject to mood swings.
- Getting angry after discovering his name, sometimes, is used to indicate Poof instead of him.
- Getting attacked or abused by something/someone.
- Talking to himself (sometimes with a baby voice).
Binky Abdul[]
- Getting beaten up by Jorgen.
- Getting hurt.
- Doing something incredibly foolish that causes anger from other fairies.
Dark Laser[]
- Despite his intimidating appearance, he is very soft when it comes to Flipsie.
Chloe[]
- Getting crazy.
- Being nice.
Sparky[]
- Licking people.
- Talking to people in human speak (usually to Mr. Turner), when being asked he either gives an excuse or barks.
- Having a possible life as a criminal.
Francis[]
- Bulling students.
- Being easily tricked by Timmy.
Mr. Bickles[]
- Wanting to accomplish his dreams but sometimes fails.
Chet Ubetcha[]
- Having insecurity about his height.