Courtesy of Prentiss F.
A flat-chested young lady went to Dr. Smith to see about enlarging her breasts. Dr. Smith told her, "Everyday after your shower, rub your chest and say, "Scooby doobie doobies, I want bigger boobies."
She did this faithfully for several months and it worked! She grew great boobs!
One morning she was running late, got on the bus and realized she had forgotten her morning ritual. Frightened she might lose her lovely boobs if she didn't do the little rhyme, she got right out there in the middle aisle of the bus and said, "Scooby doobie doobies, I want bigger boobies."
A guy sitting nearby asked, "Are you a patient of Dr. Smith's by any chance?"
"Why, yes I am. How did you know?"
He leaned closer, winked and whispered, "Hickory dickory dock".