Knock, knock. Who's there? Nobel. Nobel who? No bell, I knock.
Knock knock. Who's there? Allahu Akbar. Allahu AK- BOOM!!!
Chuck Norris was once part of a knock knock joke. The Joke ended abruptly when after the first knock the door blew up killing the man behind it.
Knock Knock! Who's There? Figs Figs who? Figs the doorbell, it's broken!
Fast way to screw up someone's Knock Knock joke...? "It's open."
One night, there was a knock on my door... i open it and no one was there every night I would get the same knock and still no one was there... Untill the morning I was just making myself some tea as a person knocks on my door it was a black man he walk in and stole my tea .... i said to myself did he just mug me .... I still didn't know who was knocking on the doors at night Untill one night I opened my door and there was a floating mug I was still confused.
"Have you heard my knock-knock joke?" asked the blonde. "No," said the brunette. "Okay," said the blonde, "you start."
Knock Knock. Who's there? Opportunity. Don't be silly - opportunity doesn't knock twice!
Knock, knock Who's there? I'm Mr, Farter. Mr, Farter who? I've brought some insecticides to give to your mother in law!
Q: Why can't you tell blondes knock-knock jokes? A: Because they leave to go answer the door.
Knock-knock. Who's there? To. To who? No, to whom.