A teacher asks the class to name things that end with 'tor' that eats things.

The first little boy Timmy says, "Alligator."

"Very good, that's a big word."

The second boy William says, "Predator."

"Yes, that's another big word. Well done."

Little Johnny says, "Vibrator, Miss."

After nearly falling off her chair, she says,

"That is a big word, but it doesn't eat anything."

"Well my sister has one and she says it eats batteries like there's no tomorrow!"