The quality and aptness-of-thought of this joke might depend somewhat on your age, and how exposed you were to world cultures. This is mine, a joke I overheard Dad tell Mom. I remember it because she really laughed. Now that I actually get it, I still wonder why she laughed:
A cowboy was out riding one day when he happened upon a rattle snake. He drew his pistol to shoot it, but the snake spoke up: “If you don’t shoot me, I will grant you any three wishes.”
The cowboy decided a magic snake might just be worth playing along with. So he wished, “I would like to be as handsome as Clark Gable, as rich as Gene Autry, and hung like my horse.”
The next morning he arose and looked in the bunkhouse mirror. “Son of a gun, I look like Clark Gable!” He noticed his pockets were full of gold. “And I am rich as Gene Autry!”
Then he lowered his pants and stared in the mirror, with horror. “OH MY GOD!” he cried. “I was riding Old Nell.”
I can sort of recall my husband’s favorite childhood dirty joke. It involved a kid named Johnny Fukkerfaster. The punch line was, “I’m fucking her as fast as I can,” but I don’t remember the rest of the joke.
How about you? What’s the first dirty joke you remember?