Jerky Jasper
Season 4, Episode 1
Jerky Jasper Title Card
Premiered: July 1, 2016
Short: "Uncle Grandpa Sings the Classics Vol. 82"
Written and Storyboarded by:
  Myke Chilian
Zeus Cervas
Story by:
  Pete Browngardt
Kelsy Abbot
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"Inventor Mentor"
Next Episode →
"Dinosaur Day"

Jerky Jasper is the 1st episode of Uncle Grandpa Season 4, and the 105th episode overall of the series.


Uncle Grandpa tries to meet Pizza Steve's imaginary friend, but when he learns he's not young enough to see him he decides to turn himself into a baby.


Pizza Steve is busy rocking out on his speaker system inside his cardboard box, unaware that he is annoying Mr. Gus with the loud music. His jamming also ends up causing Uncle Grandpa to accidently destroy his rv in a bottle model. Angry he looks for the source of the music and Mr. Gus points him toward Pizza Steve's box. Uncle Grandpa enters his friend's room and instead of telling the truth Pizza Steve lies and tells him that the music was his imaginary friend Jerky Jasper's fault, which he instantly believes.

Uncle Grandpa then pesters Pizza Steve about wanting to meet Jerky Jasper. He tells him that he can't because he has to be physically young in order to see his imaginary friend. Uncle Grandpa then reaches inside belly bag and turns the hands back a little on his biological clock physically regressing him back into a fifteen year old teenager. His teenage self quickly gets on Pizza Steve's nerves and he tells him that he's still not young enough. He then storms off after telling him to stop being such a baby about it. Hearing the word "baby" Uncle Grandpa gets an idea and reaches back inside belly bag to turn the clock hands back further, causing him to regress all the way back to a baby in diapers. Now an infant he immediately starts crawling around the rv in search of Jerky Jasper.



  • When Uncle Grandpa turns himself back into a baby he's wearing nothing but his propeller hat and a diaper. In Uncle Grandpa Babies he wears a rainbow colored bib, yellow shirt, belly bag and has a smaller verison of his mustache. Also in Jerky Jasper his baby body is more realistic.
  • Uncle Grandpa doesn't use his diaper at all during his time as a baby.
  • This is the second time we see Uncle Grandpa as a baby. The first time was in Uncle Grandpa Babies.
  • This episode's quote is "I got crumbs in my socks!"


v - e - d Episode List

Secret Mountain Fort Awesome Precursor
Uncle Grandpa (Pilot)Secret Mountain Uncle Grandpa
Season 1
Belly BrosTiger TrailsSpace EmperorFunny FaceMoustache CreamNicknameDriver's TestUncle Grandpa SitterUncle Grandpa Ate My Homework!Uncle Grandpa for a DayAfraid of the DarkTreasure MapLocked OutJortsBrain GameMystery NoiseCharlie BurgersUncle Grandpa ShortsPerfect KidBig in JapanLeg WrestleFuture PizzaMore Uncle Grandpa ShortsViewer SpecialBad MorningPrank Wars1992 CalledBezt FrendsFood TruckHide and SeekThe History of WrestlingSick BagVacationAunt GrandmaGroundedHaunted RVNot FunnyInternet TrollPrison BreakEscalatorChristmas SpecialDog DayTiger and MousePizza Steve's DiaryBallin'Big Trouble for Tiny MiracleNew KidUncle ZombieUncle CavemanMisfortune CookieWasteland
Season 2
Duck LipsNumbskullBody TroubleShower PartyUncle Grandpa LandTaco CometThe FanThe PackageAre You Talking to Tree?OlderGuest Directed ShortsHundred Dollar GusWeird BadgeThe Great Spaghetti WesternPal.0Uncle Grandpa at the MoviesBottom BagWatermelon GagBirdmanUncle Grandpa RetiresFool MoonSecret SantaNacho CheeseMustache Tree
Season 3
The Little Mer-TigerBall RoomBack to the LibraryUncle EasterKing GusUncle Grandpa MovieLamestationSpace OddityRelaxation LandThe Land of the Lost ShadowsPizza EveThe Return of Aunt GrandmaMessy BessyMemory FoamEven More ShortsFleas Help MeWicked ShadesExcept for CooperIn the CloudsThe Lepre-ConFear of FlyingG'day Mornin'Uncle FashionInventor Mentor
Season 4
Jerky JasperDinosaur DayRV OlympicsUncle MelvinsUncle BaseballCostume CrisisUncle Grandpa Runs for PresidentChill OutThe Bike RideMr. Gus Moves OutHiccup HavokMacGuffinGone to His HeadPony TaleYou Can't Handle the Tooth!A Gift for GusRobo-UGLil' MacDisappearing ActTongue TiedUncle DummyFace FixThe Phone CallUncle CupidDoctor VisitCake Mistake
Season 5
Sheep DeprivationTrash CatUncle Grandpa's Odd-ysseySurprise PartyLate Night Good Morning With Uncle GrandpaNew DirectionAnger ManagementPizza Steve's PastDiggin' a HoleBroken BoogieUncle Grandpa's Uncle GrandpaTransitional PhaseCartoon FactoryDate With GusWhat's the Big Idea?Full Grown PizzaMore Director ShortsHigh DiveChess Master SteveTiny Miracle's Tiny MiracleUncle GreedpaExquisite GrandpaUncle Grandpa: The High School Years
Say UncleUncle Grandpa Babies

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