A little is walking to school. On the way, a lady comes out of her house, waves at him with her pinky finger and says "hi little boy."

He waves back and carries on to school.

On the way back from school it happens again. This continues for several days. So the boy asks her, "lady, what does that mean?"

She responds, "it's the size of your penis."

Perplexed, the boy says. "uh, ok," and goes home. He asks his mother what that meant. She whispers something into his ear, and he says "uh, ok."

The next day on the way to school, the boy passes by the lady's house, and sure enough, she comes out, waving with her pinky, "hi, little boy."

The boy turns to her, sticks his fingers in his mouth, pulls his cheeks as far apart as he can, and says "Hi lady!"