Beer
An uncle of mine once told me "you know why beer goes through you so fast?"
"Why?" I asked.
"Because it doesn't have to change color on the way out!"
Then he laughed for a while.
When he was done laughing I pointed out that we were both drinking Guiness, and that either he had mistaken his dick for his asshole or there was something seriously wrong with his urinary track.
"Why?" I asked.
"Because it doesn't have to change color on the way out!"
Then he laughed for a while.
When he was done laughing I pointed out that we were both drinking Guiness, and that either he had mistaken his dick for his asshole or there was something seriously wrong with his urinary track.