scat-snack: A comestible product usually consisting of a large bag of potato chips and human excrement. It is prepared by removing some of the chips, and then shitting in the bag. After this, the shit is covered with a fresh layer of potato chips. The bags thus prepared are usually left in school buses during field trips, to be discovered by some hapless passer-by.
Tommy thought he scored when he grabbed the bag of Doritos off someone’s seat. Unfortunately, he found out the hard way that he was eating a scat snack.