towel surprise
When you take a wet towel and drag it down the crack of your ass to leave a dark brown streak of shit and ass hair. The towel is then usually strategically placed in the laundry hamper so that when someone reaches in to fetch the dirty laundry, he or she can't help but get a handful of ass in the process.
Thomas left a two foot long towel surprise in the laundry hamper this morning when he found out it was his 19 year old daughters turn to do the laundry.