The act of inserting one's penis inside of another persons belly button. After insertion the person receiving the penis immediately yelps "YIPEE!!!" exactly like the Pilsbury Dough Boy does.
Nilano: Hey man i want to try a new move on you tonight.
Black man: What is it?
Nilano: Its called the Pilsbury Dough Boy, I WANT TO STICK MY PENIS INTO YOUR BELLY BUTTON!
Black man: That sounds like one hell of a time!!! I cant wait! The cum is going to look so white on my dark skin!