The Singing Undertale Man, also known as the 'Bababa' meme, features a 3D-animated man singing along to a high-pitched, rhythmic version of the track 'Fallen Down' from the Undertale soundtrack. The meme gained massive traction on platforms like TikTok and YouTube, where the character's enthusiastic mouth movements and repetitive vocalizations became a symbol for pure joy, absurdity, or rhythmic obsession. Originally stemming from a remix that blended the Undertale aesthetic with nonsensical 'ba-ba-ba' sounds, it is now primarily used to express a state of mind where one is stuck on a catchy loop or simply vibing through a chaotic situation.