Zalgo is an internet horror meme that reimagines familiar cartoon characters as corrupted, distorted versions, and SpongeBob became a popular subject because his cheerful design makes the contrast especially unsettling. Fan-made edits, animations and jumpscare compilations spread the character through YouTube and TikTok, where creators use the sudden scare for pranks and Halloween content. Because viewers instantly recognise SpongeBob, the distorted version lands faster than an original monster, which keeps the clip in regular use for shock edits and reaction videos.