Horse Plinko is a surrealist internet meme that originated on Tumblr around 2021, featuring a low-poly 3D model of a horse cascading through a Plinko-style pegboard. The meme gained massive traction for its inherent absurdity and the satisfying yet chaotic physics of the horse's descent. Often used to represent a mind in disarray, a chaotic situation, or simply as a non-sequitur, Horse Plinko has become a staple of 'weird internet' culture. It represents a specific brand of Gen Z and Millennial humor where the lack of context is the punchline, evolving from simple GIFs into elaborate video edits and static image macros.