Knock Knock! Who's there? Testicules. Testicules who? Pillow for penis .
Knock,Knock, Who is there? Pen! Pen who? is...
Knock-Knock Who is there? A long penis with a naked head. Come in please we were waiting for you.
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.
Peter approaches the gates of Heaven. "Knock knock," says Peter. Miraculously, someone answers him. "Who's there," a voice in the distance asked. "God," says Peter. "God who," asked the voice? "GOD DAMMIT open these gates! I've been a good neighbor, loved my wife and lost my virginity, twice!"
Knock Knock. Who's There? Justin. Justin who? Your justin time to wipe my ass!
Kock, Knock Who is there? Suck, suck. Suck, suck who? After a long pause with a low voice: My dick; dear!
I can teach you how to handle a cucumber.
Knock knock. Who's there? Urine. Urine who? Urine trouble if you don't open the door.
Knock knock? Who's there? Hitler! Hitler who? You Know, the man who kills jews.
My kid and I were in a very crowded public restroom at a sporting arena, after looking to the man using the urinal to his right, my 6 year old son turns to address me on his left and exclaims, "Daddy, that man's wiener is a lot bigger than yours!" The whole bathroom heard and looked immediately at me. So I put my hand around my kid and told him "Well son, that's because daddy isn't aroused by men."