Explore our great collection of knock knock jokes that have the response 'Isadore' to the classic prompt, 'Who's there?
Knock, knock!
Who's there?
Isadore
Isadore who?
Isadore open or closed?
Knock, knock!
Who's there?
Isadore.
Isadore who?
Isadore locked, I can't get in!