Explore our great collection of knock knock jokes that have the response 'Otto' to the classic prompt, 'Who's there?
Knock, knock!
Who's there?
Otto.
Otto who?
Otto know I can't remember.
Knock, knock!
Who's there?
Otto.
Otto who?
Otto know. I’ve got amnesia.
Knock, knock!
Who’s there?
Otto.
Otto who?
Otto know what’s taking you so long!
Knock, knock!
Who’s there?
Otto.
Otto who?
Otto know Why you’re taking so long!