Little Johnny is visiting the zoo with his mother. They go to the elephant exhibit, where a big old bull elephant is taking a leak. Johnny points to the pachyderm's privates and says, "Mommy, what's that?"
Mommy, seeing the huge member, turns bright red and says, "Oh, that's nothing. Never mind. Come along now."
A few weeks later, Johnny is at the zoo with his father. Johnny grabs his dad by the hand, and pulls him over the elephants, saying he has a question. Once there, Johnny points to the elephant's member and says, "Daddy, what's that?"
Dad replies, "Didn't your mother tell you?"
"Yes, she told me it was nothing."
"Well, your mom is spoiled, son."