What Doing?
Universe Youtube
Debut SuperMarioLogan
Appears in Lawl Alpha Sister Location
cooler's Lawl
Friends Mario (Daddy)
Rosalina (Mommy)
Derpy Hooves
Enemies ???
Lawl Team Team LASL

On-Screen Appearance

Wanna See My Pencil?

A Door Appears and is Open, Jeffy is seen and asks "Hey, You wanna see my Pencil?"

Special Attacks

Neutral B - Uh Uh!

Jeffy will Say Uh Uh, and those words will come out hitting any opponents.

Side B - Green Beans

Jeffy will Throw a Plate of Green Beans Damaging anyone hit by it.

Up B - UFO

Rosalina's Parents UFO Appears and Sucks up and then spits out anyone sucked in

Down B - Cat Piano

Jeffy Plays his Cat Piano, Damaging anyone Near him

Final Smash - Pooperman

Jeffy will Transform into his Pooper Man Persona, he will then Poop in his Diaper which then comes out and Explodes Damaging anyone dared to be hit by it.


KOSFX1: Ahhhh!





Up: What Doing?

Sd: Why?

Dn: Why you do that?

Victory Options+Failure/Clap

Victory 1: Jeffy will say "That's So PP"

Victory 2: Jeffy Smacks his Diaper

Victory 3: Jeffy Smashes a Plate of Green Beans and says "I HATE GREEN BEANS"

Lose/Clap: Jeffy Cries

Classic Mode/ Classic Mode Win and Lose Pose

Classic Mode: An SML Adventure


Stage 1: Mario

Stage 2: Rosalina and Luma

Stage 3: Bowser

Stage 4: Bowser Junior (Junior will assist you after this Battle, representing their freindship in The SML Series)

Stage 5: Luigi (Representing Mama Luigi)

Stage 6: Chef Mii (Representing Chef PeePee)

Stage 7: Builder Mario (Representing Brooklyn T.Guy)

Boss Fight: Goodman

Classic Mode Victory:

Junior and Jeffy Celebrate their victory and Dance

Classic Mode Lose:

Junior screams "NOOOOOOOOOOOO!" While Jeffy Cries*

Congratulations/Game Over Pictures

Congratulations Picture:

Junior and Jeffy are seen High Fiving while Bowser and Mario look on Smiling.

Game Over Picture:

Jeffy gets yelled at by Mario

Character Description

Jeffy is an Autistic Kid, Thus he isnt that Bright, After the Tragic Death of his Sister Feebee, Jeffy has always Worn a Helmet. in 2016 He landed up on Mario's Doorstep after his Mother Nancy left him there. He now lives with Mario and his Wife Rosalina. He is Best Friends with Bowser Junior.

Standard Attacks

Ground Attacks

  • Neutral Attack - ???
  • Dash Attack - ???
  • Forward tilt - ???
  • Up tilt - ???
  • Down tilt - ???
  • Side Smash - ???
  • Up Smash - ???
  • Down Smash - ???

Aerial Attacks

  • N-Air - ???
  • F-Air - ???
  • B-Air - ???
  • U-Air - ???
  • D-Air - ???


  • Grab -
  • Pummel - ???
  • Forward Throw- ???
  • Back Throw - ???
  • Up Throw - ???
  • Down Throw - ???

Other Attacks

  • Ledge attack: ???
  • 100% ledge attack: ???
  • Front attack: ???
  • Back attack: ???
  • Trip attack: ???

Pros & Cons




SML Logo (Looks like the blast shape in New Super Mario Brothers but NEW is replaced with SML)

Victory Music

Doh De Oh - Kevin Macleod

Kirby Hat

Kirby wears Jeffy's Helmet

Exclusive stickers




Wiimote Sound


Easter Eggs

Snake Codec

Snake : Otacon He is fucking High Bitch

Otacon : Jesus no god please no, He is really fucking high Snake it's Jeffy the son of Mario...

Snake : Mmmmmmmmmm,,, I did'nt know that Mario had a son......

Otacon : He was'nt born to Mario.....

Snake : Huh he was adopted to Mario then why......

Otacon : His old mother had to drive up to a very far far far away shop so Mario had to babysitt Jeffy for a while......

Otacon : The mother isn't Princess Peach................................

Snake : What the heck Otac...........

Otacon : At this time.......... Mario and Peach had broke up.....

Snake : so whos the mother......

Otacon : Princess Rosalina is the mother....

Snake : Handy for a while....but is he in a t.v. programe or wha...

Otacon : He is the main character in the youtube channel Supermariologan........

Jeffy interupts the chat..

Jeffy: Hey Wat Doing, I'm Jeffy

Daily Buglin'


Palutena's Guidance


Role In (Insert Story Name)



Crowd Cheer

Video Music

Ending Music

Lawl Food

17 Pancakes

Pawlette Swaps

  • Default
  • ???


  • Insert One


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