When an Alpha Male (Lad) spaffs is load all over the tits of his not so well endowed female member of the community, It is known as a Mayonnaise Pancake.
Lewis: I'm going to come right now.
Rosie: Do it on my tits, you rancid beast.
Lewis: No, I don't want to create a mayonnaise pancake. I'm going to spaff in your ear instead.