mint chocolate swirl
You take a dump in a girls mouth, then after that, you cum in her mouth and make her squish it around in her mouth. Then you slap her in the back of her head and she will spit it up and when it comes out of her mouth, it will look like Mint chocolate because the cum is white, and the shit is dark or green.
my girlfriend wanted to get a mint chocholate swirl at starbucks but i had a better mint chocolate swirl in mind