Moby is the orange robot mascot from BrainPOP, an educational media brand known for animated lessons. The character's beep-like vocal sounds became familiar to students who watched BrainPOP in school, and short clips of that audio later spread into memes, reaction edits, and nostalgic posts online. It still gets used because the sound is instantly recognizable to many viewers, especially people who remember classroom videos, and because its tiny robotic chirp fits fast-paced editing without taking over the joke.