The image is a humorous and edited three-panel comic strip, likely derived from a scene in a popular animated television show. The top panel shows a character widely recognized as SpongeBob SquarePants, a main character from the eponymous show, with a straight-faced expression as he stands on a sandy seabed. A human hand holding a large eraser is poised over SpongeBob's pants.
In the middle panel, the human hand with the eraser has begun to erase the bottom part of SpongeBob, specifically the area where his pants are depicted. Notably, SpongeBob's iconic square pants are purple with flower-like patterns, deviating from his usual brown pants, adding a layer of absurdity.
The third panel reveals the result of the erasing act—the bottom half of SpongeBob is completely gone, and instead, a pair of cartoony, pinkish worm-like characters are revealed standing beneath him, as if they were his legs. The lack of SpongeBob's body makes it look as though these two worm-like entities were standing in for his legs all along.
The text above the comic strip reads, "this is the worst thing i’ve seen today," indicating the poster's mock-horror or exaggerated disappointment at the absurd scene depicted. The humor may come from the unexpected and illogical revelation that SpongeBob's legs are actually separate anthropomorphic characters.
Audiences might find this funny due to the absurd and nonsensical nature of the surprise twist. It brings a surreal twist to an otherwise familiar character, defying the established norms of the character's physical composition, and leading to a surreal and whimsical outcome.
Finally, the image plays on the nostalgia and affection for the beloved character while simultaneously subverting expectations in a whimsical and bizarre way; this combination often lies at the heart of internet humor. The unexpected nature of the reveal and the playful manipulation of a well-known character are typical of the meme culture that thrives on surprise and the recontextualization of popular media. this is the worst thing i ve seen today