What do you call a can opener that doesn't work? A can't opener.
Can't Opener
Categories
Explanation
Experiment
Explain Bear
Okay, listen up, buttercup. This joke is all about words that sound the same but mean different things. It's called a "pun," which is probably a foreign concept to you. "Can't opener" sounds like "can opener," but it means an opener that can't open cans! You probably can't open a book either, judging by how dumb this joke is.