Knock knock!

Who's there?

Erma.

Erma who?

Erma going tell you lots of knock-knock jokes!

Knock knock!

Who's there?

Heifer.

Heifer who?

Heifer dollar is better than none!

Knock knock!

Who's there?

Scold.

Scold who?

'Scold out!

Knock knock!

Who's there?

Lettuce.

Lettuce who?

Lettuce in and I'll tell you!

Knock knock!

Who's there?

Doug.

Doug who?

Doug-out is where the baseball players sit!

Knock knock!

Who's there?

Abe Lincoln.

Abe Lincoln who?

A-be Lincoln light on a Christmas tree!

Knock knock!

Who's there?

Barbie.

Barbie who?

Barbie Q chicken!

Knock knock!

Who's there?

Gumby.

Gumby who?

Gumby our guest for dinner!

Knock knock!

Who's there?

Jude.

Jude who?

Jude the food, then swallowed it!

Knock knock!

Who's there?

Icy.

Icy who?

Icy a big monster under the bed!

Knock knock!

Who's there?

Window.

Window who?

Window we get to play something else?

Knock knock!

Who's there?

Agatha.

Agatha who?

Agatha the chills when it's cold!

Knock knock!

Who's there?

Howell.

Howell who?

Howell do you know me?

Knock knock!

Who's there?

Genoa.

Genoa who?

Genoa good dentist?

Knock knock!

Who's there?

Xavier.

Xavier who?

Xavier money in the bank!

Knock knock!

Who's there?

Ham.

Ham who?

Ham I going to see you again?

Knock knock!

Who's there?

Cargo.

Cargo who?

Car-go vroom vroom!

Knock knock!

Who's there?

Thelonius.

Thelonius who?

Thelonius night of the week!

Knock knock!

Who's there?

Watson.

Watson who?

Watson television?

Knock knock!

Who's there?

Lionel.

Lionel who?

Lionel eat you if he's hungry!