Little Billy and words

A teacher asked her third grade class to name things that ended with “tor” and that also ate things.

The first little boy said, “Alligator.”

“Very good James, that’s a big word.”

The second boy said, “Predator.”

“Yes, that’s another big word Alan. Very well done.”

Little Billy says, “Vibrator.”

After nearly falling off her chair, the teacher says, “That is a big word Billy, but it doesn’t eat anything.”

“Well my mother has one and she says it eats fucking batteries like there’s no tomorrow!”