When your titty fucking a girl, you look back and notice that you have left a racing stripe on her chest and nonchalantly wipe it away with the palm of your hand and continue.
Keep an eye on William, he is known to leave a nasty Coffee Stain.
by Kaka Butt November 14, 2007
The stains left in your underwear after unleashing a wet fart
The bean soup I ate for lunch gave me coffee stains.
by Joe Z January 08, 2007