The Tongue Monster is a corrupted Gem that first appeared in "Kindergarten Kid".


The Tongue Monster is a bipedal, avian-esque Gem, with two long dark green legs which lead into an orb-shaped and teal-colored body. On either side of her head are a set of three small eyes with white sclera and lime-green irises. She has a large mouth with fang-like teeth and a set of three gray tongues she often undulates when calling out while bobbing up and down. Her gem is located on the center of her nose and is a mixture of blue-green, gray, and brown colors that are different on each facet.


"Kindergarten Kid"

The Tongue Monster was the main antagonistic force in the episode. She was left in the Beta Kindergarten after Jasper had been corrupted and poofed as a remnant of her army which was being rounded up by the Crystal Gems. When Pearl, Garnet, and Amethyst were incapable of capturing her, Peridot and Steven went out to hunt her down. Peridot attempted to outsmart her with her various "Peri-plans", however despite her and Steven's best efforts she managed to cause each of their plans to backfire. Steven then suggested that Peridot should think like the Tongue Monster. Eventually, Peridot and the Tongue Monster fell off a cliff, which Peridot survived due to her innate durability, while the Tongue Monster was poofed by the force of the fall. Peridot then bubbled her gem which end up being sent to the Barn instead of the Burning Room as Peridot considers the barn to be her home.


  • Enhanced Speed: She can run at extremely high speeds, making her immensely difficult to capture, even when trying to grab onto her such as when Amethyst latched onto her using her whip.
  • Enhanced Strength: She's capable of towing gems like Amethyst and Peridot behind her while still running at maximum speed, and was easily able to lunge onto Steven and attack him using her talons.
  • Intelligence: She was capable of outsmarting Peridot and Steven's plans, and even inadvertently caused Peridot to get crushed by a massive boulder through her curiosity.

Episode Appearances


  • She resembles the small figurine Steven had in his room which he showed to Holo-Pearl in the episode "Steven the Sword Fighter", which in turn parodied Sonic the Hedgehog, who is also known for his remarkable speed.
  • She and the Cluster are the only bubbled Gems not in the Burning Room.
  • She parodies a well-known Looney Tunes character, the Road Runner, who was known for his antics alongside Wile E. Coyote.
    • Like the Road Runner, she has avian-like characteristics, high speed, and also makes gurgling sounds.
  • She also bears a resemblance to the shrieker from the Tremors Franchise.
    • Like the shriekers, the Tongue Monster possesses long legs, a large head and mouth, a long tongue, and vocalizes in shrill screeches.


Image Description
The Tongue Monster's gemstone is located at her nose, resembling a Zircon in shape.


New Gallery

Click to view the gallery for Tongue Monster.

ve Corrupted Gems

CentiNAV Wormmonster gemnav Obelisk gemstoneNAV Desertglas gemstoneNAV Gemcavecreature gemstoneNAV BirdNAV Heavenbeetle gemstoneNAV Earhbeetle gemstoneNAV Watermelontourmaline thumbnailNAV Icemonster gemNAV Invisiblegemmonster gemstoneNAV Lighthouse MonsterNAV Waterbear gemstoneNAV SlinkersGemNav Crabmonster gemstoneNAV BiggsJasperNavigation SMNav FusionTemplateJasperMonster NewJasperNAV UCGNav Flowergemnav Historical Friction monster template picture

ve Characters in Steven Universe
Crystal Gems Half: Steven

Unfused: AmethystBismuthPearlPeridotRose QuartzRubySapphire
Gem Fusions: AlexandriteCluster GemsGarnetOpalRainbow QuartzSardonyxSugiliteUnknown Fusion Gem
Hybrid Fusions: Smoky QuartzStevonnie
Inactive: Bismuth • Rose Quartz

Homeworld Gems Unfused: AquamarineEmerald • Topazes (left and right)

Fusions: MalachiteTopazCorrupted Jasper Fusion"Giant Ruby" (quintuple fusion)Ruby (triple fusion)
Inactive: JasperPink DiamondZircon (Defense)Zircon (Prosecuting)

Off Colors Unfused: PadparadschaRutile Twins

Fusions: FluoriteRhodonite
Humans: Lars Barriga

Other Gems Corrupted: Big BirdCentipeetle MotherCrab Gem MonsterDesert GlassEarth BeetleFlower MonsterGem Cave CreatureHeaven BeetleIce MonsterInvisible Gem MonsterJasperLighthouse Gem MonsterOrange Great North MonsterPyramid Temple GemPlant MonsterSlinkerSnow MonsterTongue MonsterWater BearWatermelon TourmalineWorm MonsterUnknown Giant Gem Monster

Other Gems: The ClusterLapis LazuliMinor GemsMinor Corrupted GemsUnknown Gems (Morganite • Nephrite • Nephrite-XJ Cut-763 • Unknown Quartz Warrior • Blue Diamond's Court • Pink Diamond's EntourageUnknown Crystal Gems67 Elite Citrines)

Comics Gems: Ant Gem MonsterClock Tower GemGlass GhostInvisible Manta RayMole Gem MonsterMolluskMonster Lizard GemObeliskOld Book GemPlant MonsterPerils of PweepweeRainbow Cloud MonsterRed Bird Gem MonsterRed Eel MonsterSlime Gem MonsterSlug MonsterSnowbeastTentacle MonsterUnknown Giant Bird

Major Characters Human: Connie MaheswaranGreg UniverseSadie Miller

Other: Lion

Recurring Characters Humans: Andy DeMayoBarbara MillerBill DeweyBuck DeweyBuddy BuddwickDante and Martha BarrigaDoug MaheswaranDr. Priyanka MaheswaranHarold SmileyJamieJaneJenny PizzaKevinKiki PizzaKofi PizzaMartyMr. FrymanMystery GirlNanefua PizzaOnionPeedee FrymanRonaldo FrymanSour CreamQuentin FrowneySuitcase SamVidaliaYellowtailZoomans

Other: Baby MelonCat StevenBlue CrabHolo-PearlMagic MossPumpkinSteven Jr.Watermelon Stevens

Minor Characters Humans: The Best Diner in the World's WaitressEmpire City Wildlife Rehabilitation Center EmployeeGaryGreg's family (Aunt and Uncle • Aunt DebGrandfather) • Hospital Employees (Dr. GeroDr. StrombergDr. West) JeffMarty's RoadiesMayor Dewey's BodyguardsMike KrolOnion's Friends (Garbanzo • Pinto • Soup • Squash) • RickySabinaSteven's BabysitterSunshine JusticeWilliam Buford BuchananWilliam DeweyMinor Human Characters

Other: Blue CrabsButt LobsterCrystal BasiliskDogMask Island FishOnion's MouseOnion's SnakeParty GuyRaccoonSeagullsSnakeSteven The ThirdSusanMinor Animal Characters
Aliens: Beetle AliensBird AliensUngulate AliensMinor Alien Characters

Fictional Characters Cookie CatDogcopterMearlPizza JennyMinor Fictional Characters

Camp Pining Hearts: PaulettePercyPierre
Garnet's Universe: FoxmanHopperHoppyRingo
Golf Quest Mini: AceAce's Father
Li'l Butler: Li'l ButlerMr. MoneyMrs. MoneyDaughter Money • Dirtbike Money
Lonely Blade: Evil JanitorLonely BladeLonely Blade's Brother
Rose's Room: Cloud ConnieTiny Floating Whale
The Spirit Morph Saga: ArchimicarusLisaPlinkmanWind Lizard

Antagonists CentipeetlesCrab MonstersCrystal ShrimpDrill ParasitesElectric SkullsFryboRed EyeRobot Shooty ThingSmoke MonsterVine Monsters
Alter Egos Billy Bank AssetsChunk TruckConcrete HeatDashing Danny DooberHandsome Hank HackleschmidtHowl JonesLoch Ness BloggsterPurple PumaSea WaspShark-O-ManiaTiger Millionaire
Attack the Light Blue LightGreen LightIndigo LightOrange LightRed LightViolet LightWhite LightYellow Light

Groups: Light ArmyBlue Monsters • Green Monsters • Indigo MonstersOrange MonstersRed Monsters

Save the Light Hessonite • SquaridotCitrine
Groups Cool Kids • Crystal GemsCrystal Temps • "Famethyst" • Great Diamond Authority • Homeworld Gems • Hospital EmployeesOff ColorsOnion's FriendsSadie Killer and the SuspectsSecret Team • Steven and the Stevens • Water ClonesZoomansMinor Human CharactersMinor Animal CharactersMinor Fictional CharactersMinor Gem CharactersMinor Corrupted GemsSpeciesUnknown Gems

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