Grumble Volcano - Mario Kart Wii

"Grumble Volcano - Mario Kart Wii" is a high quality rip of "Grumble Volcano" from Mario Kart Wii.

Joke
The rip starts as usual until 0:06, when Funky Kong voice clips start playing on top of the otherwise unaltered music. Every few seconds, an additional layer of Funky Kong voice clips is added to the music, eventually resulting in what sounds like a chaotic orgy of multiple Funky Kong instances yelling loudly. Midway through the rip, the pace at which additional layers of Funky Kong voice clips are added on top of the music is slowed significantly.

This is a reference to how Funky Kong is widely used for online races and time trials in Mario Kart Wii.

The description's catchphrase further references Funky Kong, quoting one of his voice clips.