the shitty mud that comes out of your ass after maintaining a poor junky diet, like eating spices or too much sugar. it feels like shitting out razor blades dipped in tobasco sauce.
after a night of eating 20 jalapeno poppers, I spent the next morning on the toilet shooting out hot potty sauce.
Sweet-potato-sauce is an exclamation similar to 'cool', 'awesome' and 'sweet'. It is used mainly because of its superior syllable construction. It often seems insufficient to simply say 'sweet!' when you find something pleasing. However, 'Sweet-potato-sauce' has, at 5, the perfect number of syllables. You might laugh, but it is the bestway of expressing you contentment.
Person1: Hey, were you able to finish the summer reading?
Person2: Yeah, I finished the whole thing!
Person1: Sweet-potato-sauce!