The Potato was a recurring character in the asdfmovie series.
In asdfmovie, the potato is killed by the Potato Killer by stepping on it.

They reappear in asdfmovie2, where the potato killer tries to kill it again, but Potato, wearing sunglasses, pulls out a gun and says, "Not today!"

In asdfmovie3, it is going to be stepped on by the potato killer, but suddenly, I Like Trains Kid appears and says, "I like trains." Then, the killer and the potato are hit by a speeding train, and the kid smiles