According to Strong Bad, "It's a little cake... made with steam and sugar."

Strong Bad made a bet with Kevin Grumbles in Strong Bad Email Stupid Stuff in which if he could get Homestar to say something smart, Kevin would have to make him some.

After Strong Bad failed in his attempt, the Cheat attempted to give him some Cheatcakes, but Strong Bad doesn't like that kind of stuff.

The Cheat thinks only liars and thieves eat Grumblecakes, and you all know those people go to prison. Just ask the Cheat.

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