Here's one that only me and three of my friends get...
There was a guy who came into the bar with a carrot in his ear...The bar tender after giving him his drink thought he should say something but then the guy got up and walked out. The next day he comes back still with a carrot in his ear and the bar tender gets him the drink and then says why do you have a carrot in your ear? The guy says "what? I'm sorry I didn't hear you I had a carrot in my ear."
We laugh our asses off everytime someone even mentions a carrot. I went up to one of the girls last weekend at our BBQ and said, "excuse me, would you like a carrot?" I thought she was going to spit her drink all over me!
