It's from an episode of the Simpsons, where Homer in flashback is showing how he built Bart his own toddler bed, that was supposed to be with Krusty the Clown bed posts, but turned out to look spooky as Hell.
Baby Bart kept chanting, "Must not sleep,... the clown will eat me"
I SO feel like that right now.
Don't watch TV,makes me mad.