What is Butt Sand?
1.
The sweat-soaked flecks of toilet paper that accumulate in ones' butt crack during the day. This term applies mostly to women as men's butt cracks usually contain large amounts of poop and other filthiness.
He asked me to clean off my butt sand before he would go down on me.
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This term originated saturday night, when the poor form of Nick Mann rejected a good looking girl for roots. From here on out the term N..