SpongeBob SquarePants

SpongeBob SquarePants is an American animated television series airing on Nickelodeon, created by the late marine biologist and animator Stephen Hillenburg. The show premiered on May 1, 1999, and continues to run, currently making it the longest-running series on Nickelodeon. The series chronicles the adventures and endeavors of the title character and his various friends in the fictional underwater city of Bikini Bottom.

MuscleBob BuffPants
Season 1, Episode 11a Airdate: September 25, 1999

Sandy: "Uhh, I don't wanna disappoint you, SpongeBob, but you won't see any progress with those."

SpongeBob: "Oh, really?"

Sandy: "That is, if you want arms like these." [rolls up a right sleeve, and flexes her right arm, showing off her big, bulging impressive bicep] "Or these!" [rolls up other sleeve and flexes left arm, revealing her other large bicep] "OR THESE!"[shows off her powerful back muscles while executing a back double bicep flex, her suit gets skin tight.]

In this episode, Sandy Cheeks visits Spongebob's house and sees him and the equipment that he is using to work out, she tells Spongebob that he will not get any results using the equipment he is using. Spongebob thinks Sandy is lying but is immediately stunned when Sandy rolls up her sleeve and shows Spongebob her large body-builder size muscles flexing and bulging with veins, they get so big that her suit looks as if it is ready to tear by flexing her back.

Christmas Who?
Season 2, Episode 8 Airdate: 6 December 2000

Sandy: "What in the name of the Alamo is wrong with you, SpongeBob? Ain't you never seen a Christmas tree before?"

SpongeBob: "Christmas who?"

Sandy: "What?! Y'all never heard of Christmas?"

SpongeBob: "Is she a friend from Texas?"

Sandy: "[laughs] No. I can't believe you haven't heard of... [makes an adorable face] …Christmas."

SpongeBob: "Tell me more about this... [imitates Sandy] …"Christmas.""

Patchy: "And so, Sandy wove the magical tale of gumdrops and pennywhistles. She told of toy-making elves and flying reindeer. But best of all, she told of the one they call, Santa Claus."

In this episode, as Sandy tells the story of Christmas to SpongeBob, she flexes and big bulging muscles emerge from her body, she goes through quick muscle growth and quickly turns back into her normal self.

Enemy In-Law
Season 4, Episode 7a Airdate: October 14, 2005

Plankton: I don't want to hear your lies! You owe me for leading me on like this! Give me the Krabby Patty formula and we'll call it even.

Betsy Krabs: The formula? Is that what this whole thing was about?

Plankton: No, no, not really. I mean, not at first. I mean uh...honeybunch? Uh-oh. [Mama Krabs shows her muscles, which show as ships cannons. She punches Plankton back to the Chum Bucket] Oh, well, 'tis better to loved and lost than never to be loved at all! [Plankton ends up flying into the ON switch of Karen]

Karate Island
Season 4, Episode 11b Airdate: May 12, 2006

Sandy: [breaks the bird cage] I won't give in to your timeshare vacation scam!

Master Udon: Then give into my fists. [rips off the robe and exposes his speedo and flexes to begin his muscle growth. Sandy does the same by ripping off her jumpsuit then exposing her bikini and grunts while flexing for her muscle growth transformation. Both flex their bodies, starting with the extra muscles like Sandy’s Tail along with Master Udon’s Eyebrows next The Chests, Arms, Legs and they both do primal roars, then fight. They miss each other from Charging. Master Udon turns back to get her. Sandy jumps on top of Master Udon's head, then slaps him with her feet. Master Udon then grabs Sandy by her ankles then spins her around and throws her into the wall. Sandy retaliates by the springing off the wall and landing in front of Master Udon They karate chop some more before Sandy grabs him and throws him on the ground over and over. She then throws him in the air and kicks him in the face, sending him outside of the tower and falling into the ocean]

Sandy: You're in the soup now, Udon! [scene cuts to SpongeBob and Sandy walking toward their boat]

Before squaring off against Udon, the Karate Master, Sandy rips off her jumpsuit, clenches, grows muscles, flexes, and unleashes a primal roar before charging against Udon, which veins on her forehead, arms, tail, traps, and pecs.

This was used as stock footage on a Nick commercial in July 2012, advertising "The Super Spongy Square Games".

The Abrasive Side
Season 7, Episode 20a Airdate: November 27, 2010

Sandy rolls up her sleeves to remove Spongebob's abrasive side, revealing muscular, manly, tough-looking arms as a gag. Fact: This is the only Sandy muscle moment where she doesn't have veins. It's also an animation error, as she already has fur on her arms.

Whelk Attack
Season 7, Episode 22b Airdate: October 2, 2010

SpongeBob and Patrick: Sandy! Please let us in! [the whelks start toward them and bite and they scream] Let us in!

Sandy: [looks through her door] SpongeBob? Patrick?

SpongeBob and Patrick: Please! Please, let us in!

Sandy: How can I be sure you're not whelks in disguise?

SpongeBob: We're not whelks! We're not whelks!

Sandy: [to SpongeBob] What's your mom's maiden name?

SpongeBob: Eeh, BubbleBottom!

Sandy: Patrick, what's your first name?

Patrick: Uh, is this a trick question?

Sandy: [sighs] You're in. [lets them in and activates a lever that covers her treedome in metal] I think I have the answer! Now, do ya want the regular answer or the ACTION PACKED answer?!

SpongeBob: Uh, action-packed, please?

Sandy: Yes! [jumps in the air] I need a sample of their slime! If I can analyze it, [turn buff and flex her muscle, doing the most muscular pose] I might be deduced the cause of their behavior! And maybe we can stop them!

While telling SpongeBob and Patrick the "action-packed answer"(really just the regular answer with random karate moves dispersed in), she briefly grows muscles and flexes, visible sweating as she does so, with veins on her arms.

Larry the Floor Manager
Season 11, Episode 4B Airdate: September 30, 2017

High Sea Diving
Season 11, Episode 15a Air date: April 6, 2018

Citizen #1: Hey, what happened?

Citizen #2: What's going on here?

Harold: Why isn't Neptune sending us more gifts down for us?

Gale Rechid: We must have upset him.

Harold: You must have upset him! [the townsfolk strap Gale to a death table and is prepared to be killed] This is for you, Neptune! Oohh— [prepares to kill her until...]

Gale Rechid: Wait! Look!

[SpongeBob's ladder made out of the garbage descends downward. The crowd gasps and murmurs in amazement.]

Citizen #3: Oh, it's the most amazing thing I've ever seen.

Citizen #4: What is it?

Gale Rechid: What do you think it is?

Harold: It's a ladder from Neptune! Let's climb up and get more free stuff!

Gale Rechid: Me first! [buffs up her muscles and breaks free]

[Gale runs up to the trash ladder and begins to climb it. Then several other townsfolk join in and follow her up the trash ladder. SpongeBob grabs an old soup can and finishes the ladder. The surface is now sparkly clean from the garbage patch.]

My Leg!
Season 11, Episode 16a Airdate: May 8, 2018

Nurse Bazooka (Voiced by Kevin Michael Richardson) is a muscular female fish who appears in the episode "My Leg!" She is Fred's girlfriend. She is a giant, muscular, light orange female fish with blonde hair and short gray facial hair. She also has a large, cleft chin with a mole on it. She wears a white shirt with turquoise-green edges and a white nurse cap with a red hospital cross on it. She also wears pink lipstick and red nail polish.

Sandy's Nutty Nieces
Season 12, Episode 8 Airdate: June 29, 2019

In this episode, Macadamia, Hazelnut, and Pistachio Cheeks are new characters and are triplet siblings and their debut. They look similar to Sandy Cheeks, only they're very small and they speak in rhymes for their lives. They are also similar to Donald Duck's nephews, Huey, Dewey, and Louie, but they're not ducks. They're squirrels. And here's a fun fact: Pistachio, Macadamia and Hazelnut are three different nut types. Pistachio wearing green, Macadamia wearing red and Hazelnut wearing yellow. The Cheeks triplets are both voiced by Maria Bamford.

Potato Puff
Season 13, Episode 6A Airdate: April 22, 2022

Sardina Sardiña is an actress who stars in the show Headlocks & Heartbreaks alongside Dwayne "The Puck" Orca. She is possibly the largest and strongest female fish in the ocean.

Behind the scenes
In February and March 2017, Supervising Director Adam Paloian drew pictures of Sandy and Mr. Krabs wrestling on Twitter for fun. Krabs looked normal but Sandy was drawn hulked out.