Unfinished business 

An ex from a previous relationship and you both can’t get each other out of your head, system. You get together to have enough sex until you’re done.

“I saw your girl leave this morning. Y’all back together.”
“No. We just had some unfinished business.”

Unfinished business by Kal-el22 August 3, 2020

Unfinished Business 

Fecal matter left in one's ass because they didn't wipe well enough after a dump. Usually results in a second trip to the bathroom after the itchy feeling becomes too uncomfortable.

You're at a friends house where a party is being thrown. You have to take a crap, but you understand that there are going to be people waiting for you to finish quickly. You shit quickly, wipe even quicker, and leave with "unfinished business" that will be attended to later.

Unfinished Business by The Stain September 1, 2008