A man walked into a bar and saw a sign that said, "Free drinks for a year for the person who can make my horse laugh."
So the man went up to the bartender and asked, "What do I have to do to make your horse laugh?"
The bartender replied, "Well, he’s never laughed before, but you can try."
So the man went up to the horse and whispered something in his ear. Suddenly, the horse burst out laughing so hard that he fell to the ground. The bartender was amazed and asked the man, "What did you say to him?"
The man replied, "I told him I have a bigger one than him."
And that's how the man won free drinks for a year at the bar.