when your girlfriend or female partner gets nutted in by another man, moments prior to you going down on her, and the cum leaks out onto your chin, resembling yogurt on your face.
"bro i hooked up with Dave's girlfriend at that party last night, dont tell him.. he must have gone down on her after that, because when they came back he had a huge yogurt beard!"
by 10-A-G July 23, 2014