Fast way to screw up someone's Knock Knock joke...? "It's open."
Knock Knock. Who's there? Opportunity. Don't be silly - opportunity doesn't knock twice!
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.
Fan: "I see you won a silver medal at the Olympics. What's it for?¨" Athlete: "It's for telling knock knock jokes." Fan: "And what's that gold medal for?" Athlete: "For stopping."
Without you I can't breath. I love you so much my nose.
Q:Did you hear the joke about the rope? A:Just skip it.
Knock Knock. Who's There? Justin. Justin who? Your justin time to wipe my ass!
"Have you heard my knock-knock joke?" asked the blonde. "No," said the brunette. "Okay," said the blonde, "you start."
Son - "Dad whats the difference between confident and confidential?" Dad - "Hmm. You are my son. Of that I am confident. Your friend Timmy is also my son. That's confidential."
Knock, Knock! Who's there? D umbbell. Dumbbell who? Dumbbell doesn't work so I had to knock!
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.