Boo jokes

"Bippity Bobbity Boo, Boo Radley is coming for you!"

"Bippity Boppity Boo, Donald Trump is gonna deport you!"

"Bippidy boppidy boo! Bill Cosby is coming for you!"

There is a ghost baseball game and one team loses because of one player so they start booing him!

Pete: Knock, knock...

Paul: Who's there?

Pete: Boo...

Paul: Boo who?

Pete: Don't cry, it was only a joke!

Paul: I'm going to cry! It was such a bad joke!!!

Knock, knock.

Who's there?

Boo.

Boo who?

Don't cry, it's just a joke!

Knock knock.

Boo.

No need to cry, it was only a joke. Yeh, I can't think of anything.

Booooooooooooo!

"BU" is the element of a surprise. Boo!