It is widely used as a "reaction" clip to express approval or satisfaction in response to something impressive or surprising.
In the original poem, Rosen describes eating hot potatoes and the satisfyng sound and sensation of the food being "just right." nice.avi
The "mouth pop" Rosen performs is a signature move that has become as iconic as the word "nice" itself. It is often sampled by musicians and sound designers for its clean, percussive quality. It is widely used as a "reaction" clip
The sound has been edited into songs, used in video game mods, and "deep-fried" (distorted) for surrealist humor. The "Pop" Sound used in video game mods
The clip transitioned from a children's poem to a global meme through several stages of internet subculture: