AnimalsJokes Grandpa Was Showing Johnny Around The Farm. This Will Blow Your Mind. Grandpa was showing little Johnny around the farm, and when they come to the corral, he explained, “That’s a bull and a cow, and he’s serving her.” A little later on, they saw horses. The Grandpa said, “That’s a stud and a mare, and he’s s******ing her, too.” That night at supper, after everyone was seated and grace was said, Grandma turned to Grandpa and said, “Will you please serve the turkey?” Little Johnny jumped up and yelled, “If he does, I’m eating a hamburger!” See more Previous joke How Grandma Ended Up Marrying Grandpa. Next joke A Frogs Was Traveling Through The Woods.