Knock knock. Who's there? Sarah. Sarah who? Sarah problem here?
Knock, Knock Who is there? A long erected penis with an eye on my head and some wools in my feet. What do you want? Is there any body to suck me? I want to weep.
Knock Knock! Who's there? Zany Zany who? Zany body home?
Knock-Knock Who is there? A long penis with a naked head. Come in please we were waiting for you.
Knock knock! Who's there? Yah! Yah who? Naaah, bro, I prefer google.
Knock knock. Who's there? Allahu Akbar. Allahu AK- BOOM!!!
Knock Knock Who's there! B-4! B-4 who? B-4 you take the diploma, shake the dean's hand.
Knock-knock. Who's there? To. To who? No, to whom.
Knock knock. Who's there? Déja. Déja who? Knock knock.
Knock Knock. Who's There? Justin. Justin who? Your justin time to wipe my ass!
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."