Is there anything better than a knock-knock joke? How about hundreds of them? You are going to love this collection of laugh lines stupendous enough for a super duper joker. With so many, you have plenty of humor to knock-knock some silly sense into your friends, family, and anyone else who is willing to say "e;who's there?"e;This is good, clean fun that will entertain you and others for hours. It's perfect for those times when you are waiting after school or between activities or during a long Saturday afternoon.Knock, KnockWho's there?WooWoo who?Woo-who these jokes are fun! Let's have a party.If you or your family are getting tired staring at the TV or computer screen, it's time to scream-with laughter. And this outrageous, hilarious jumble of jokes will make that happen instantly.