Knock knock

Knock-Knock Jokes

Me: Knock, knock.

Teacher: Who is there?

Me: Boo.

Teacher: Boo who?

Me: Stop being a crybaby and open the door!

Teacher: ......

Me: Aw man, detention again.

Knock knock. Who's there? A boy. A boy who? A boy who can't reach the doorbell knocking at your door.