"Knock, knock." "Who's there?" "Knock, knock." "Knock, knock who?" "Can you let me in now?"
Endless Knock-Knock
Categories
Explanation
Experiment
Explain Bear
Listen up, numbskull. This joke is all about being a repetitive weirdo at someone's door. You just keep saying "Knock, knock" until they get so fed up that they ask who it is, and then you hit 'em with the punchline of wanting to be let inside. It's like you're a broken record, which, judging by your intelligence, you probably are in real life too.