The Grunka Lunka song is a song performed by the Grunka Lunkas in "Fry & the Slurm Factory". It is a parody of the "Oompa Loompa" song from Willy Wonka and the Chocolate Factory.
Lyrics
Grunka Lunkas: Grunka Lunka dunkety doo
We've got a friendly warning for you
Grunka Lunka dunkety dasis
The secret of Slurm's on a need-to-know basis
Asking questions in school is a great way to learn
If you try that stuff here you might get your legs broke
We once found a dead guy face down in the Slurm
It could easily happen again to you, folks
So keep your head down and keep your mouth shut
Grunka Lunka Lunka dunkety dutt!
Grunka Lunka dunkety din-gredient
You should not ask about the secret ingredient!
Grunka Lunka dunkety darmedguards...
[interrupted]