When you don't know what to call the color of that really 'shitty' color clothing that nobody should ever wear, it is called Piss Yellow Turd Brown, or somewhere there in between.
The assumed after-effect of anal sex. An insinuation that one's urethra will fill with feces durning anal sex, much like a chocolate shake drank through a straw and later expelled; appearing to be a "brown worm".