When you're eating ass, and the person farts in your mouth.
I was giving Sarah a nice rim job, I didn't expect to get an egg tart.
The act of using a Dyson vacuum to suck the creampie out of a recently insemenated woman. Then reversing the suction of the vacuum directly into said insemenated woman's face. Covering the woman with creampie thus making a runny Portuguese Egg Tart.
Finally got the chance to hook up with my foreign lady Rhubarb and give her a Portuguese Egg Tart. She'll be talking about that for days.