- G.R.U.F.F. is a pun of the actual word "gruff," which means roughness of speech or discourteous in speech.
- G.R.U.F.F. HQ is a building painted color purple with a satellite tower on top of it.
- In the background showing G.R.U.F.F. a fishbowl is shown resembling Cosmo, Wanda and Poof's fishbowl from The Fairly OddParents, another Butch Hartman show.
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