When you butt fuck a girl who's menstruating. Just before releasing your load you give her two or three good pumps in the pussy then make get her suck you off. Therefore blowing your load with shit noodle in her mouth mixed with her menstrual juices that were left on your cock. "Serving up spicy marinara with pasta" would be the same thing but the girl ate spicy food the night before.
To "Dig up the past" would be to reflect on the past or to bring up something of the past up in conversation which may not always be appropriate depending on the topic being spoken about.