Knock, knock.
Who’s there?
Olive.
Olive who?
Olive these food jokes are pretty lousy.
Knock, knock.
Who’s there?
Ollie.
Ollie who?
Ollie said was that I should come visit you.
Knock, knock.
Who’s there?
Ollie.
Ollie who?
Ollie want for Christmas is my two front teeth.
Knock, knock.
Who’s there?
Omar.
Omar who?
Omar darling Clementine.
Knock, knock.
Who’s there?
Omar.
Omar who?
Omar goodness, I’m late for class!
Knock, knock.
Who’s there?
Omelet.
Omelet who?
Omelet smarter than I look!
Knock, knock.
Who’s there?
Ooze.
Ooze who?
Ooze in charge around here?
Knock, knock.
Who’s there?
Ooze.
Ooze who?
Ooze going to change my diaper?
Knock, knock.
Who’s there?
Ooze.
Ooze who?
Ooze that knocking at my door?
Knock, knock.
Who’s there?
Osborn.
Osborn who?
Osborn today! That makes it my birthday!
Knock, knock.
Who’s there?
Oscar.
Oscar who?
Oscar silly question, get a silly answer.
Knock, knock.
Who’s there?
Owl.
Owl who?
Owl aboard.
Knock, knock.
Who’s there?
Ox.
Ox who?
Ox me for a date and I may say yes.