The best knock-knock jokes

Knock Knock. Who's There? Justin. Justin who? Your justin time to wipe my ass!
Vote: has 50.34 % from 59 votes. Send joke:
More jokes about: dirty, knock-knock, sex
Knock Knock Who's there! B-4! B-4 who? B-4 you take the diploma, shake the dean's hand.
Vote: has 45.52 % from 26 votes. Send joke:
More jokes about: graduation, knock-knock
Knock, Knock! Who's there? Doctor Doctor who? That's a great TV show, isn't it?
Vote: has 43.40 % from 35 votes. Send joke:
More jokes about: doctor, knock-knock
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.
Vote: has 42.06 % from 36 votes. Send joke:
More jokes about: knock-knock, life
Knock knockrn Who's there? Woman who? Wo-man you where so nice to let me tell you this joke Knock knock. Who's there? Man. Man who? Man you where so nice to let me tell you this joke.
Vote: has 41.82 % from 24 votes. Send joke:
More jokes about: knock-knock, men, women
"Have you heard my knock-knock joke?" asked the blonde. "No," said the brunette. "Okay," said the blonde, "you start."
Vote: has 38.74 % from 41 votes. Send joke:
More jokes about: blonde, knock-knock, stupid
Knock knock? Who's there? Hitler! Hitler who? You Know, the man who kills jews.
Vote: has 27.75 % from 148 votes. Send joke:
More jokes about: Hitler, jewish, knock-knock
Knock knock. Who's there? Allahu Akbar. Allahu AK- BOOM!!!
Vote: has 26.79 % from 90 votes. Send joke:
More jokes about: black humor, knock-knock, terrorist
Q: Why can't you tell blondes knock-knock jokes? A: Because they leave to go answer the door.
Vote: has 15.14 % from 513 votes. Send joke:
More jokes about: blonde, knock-knock