Rose had come to see Dr. Hardy. When the psychiatrist began using sexual terms, she interrupted, "Wait, what is a phallic symbol?"
"A phallic symbol," explained Hardy, "represents the phallus."
"What's a phallus?" asked Rose.
"Well," said the analyst, "The best way to explain it is to show you."
He stood up, unzipped his fly and took out his pecker.
"This is a phallus."
"Oh, I get it," said Rose. "It's the word for a very small penis.