When you open a vagina up and it looks like a grilled cheese sandwich. Also if it is an old lady pussy or an abused/extremely used pussy. This is something I hope you guys don't look for in a woman, but if you do, I give props to you and your a sick person.
Person #1: Jimmy's mom has the warmest grilled cheese sandwich I ever tasted.
Person #2: Dude you are disgusting, I don't care how nice her ass or titties are, it all depends on the sandwich.