A guy once told me he had a banana shaped cock when erect. Obviously I was curious so had to find out!
A good one I remember though:
A guy in a bar came over and said his friends bet him £10 that he couldn't go back to them with my thong in his hands. He came over and told me this so I said give me half the money and we'll sort it out. He agreed so I then walked over to his friends with him and he put his hand down the back of my jeans and pulled my thong up. It was literally 'in his hands'. His friends paid up!