* OVER 1 MILLION DOWNLOADS ++
Do you love knock knock jokes? Than Knock Knock Joke is the right app for you. Download it NOW while its on special for only $0.99.
So many knock knock jokes that make you fall and not stop laughing.
Share these jokes with your friends and family and see what they think!
Enjoy these funny knock knock jokes all on your iphone/ipod touch.
Share this funny app with your family/coworkers/friends.