Two kids were arguing at the playground, "You're a bastard."
"You're an idiot!"
"Oh yea?, you're a penis!"
The playground went silent, the kids stopped arguing, and everyone asked what a penis was, but nobody knew. Little Johnny steps up, and says, "Don't worry guys, I'll find out tonight."
Little Johnny goes home, and asks his mother, "Mom, what's a penis?" She replied, "Go ask your father, he's in the garage."
Little johnny asks his dad, "Dad, what's a penis?"
His dad gets a smile on his face, whips down his pants and exclaims, "Little Johnny, this is a penis! Not only that, It's a perfect penis"
The next day at the playground, all the kids crowd around little Johnny for the answer. Little Johhny smiles and whips down his pants. "Boys, this is a penis, not only that, if it were 3 inches shorter, it would be a perfect penis"