Knock Knock HD has just been released and to celebrate we are giving away Promo Codes! To get one, just post in this thread your favourite joke and the best ones will get a code! App info is currently processing and/or the app is not yet fully available for sale on the US App Store.
Thanks for the jokes. Keep them coming! Also, if you post a good knock-knock joke and it isn't already in Knock Knock HD I'll add it in and credit you for it!