When a person (usually a man) busts a nut and urinates at the same time creating a smoothie like consistency.
Carl: "Damnit Jim I'm about to BUST!"
Jim: "What flavor will it be this time?"
Carl: "It's going to be a Coconut Lemonade Smoothie!"
When a person selling a pair of shoes busts a nut before they give them to the customer to try on.
Carl: "Hey Jim, when I let that guy over there try on some shoes I gave them a Saucy Suzie"
Jim: "What the fuck Carl."