Moon lighting 

Picking up while already pinned.

Lady sleeps with man in a hotel, he falls asleep, she comes downstairs and picks up another (this is the part referred to as Moon lighting), sleeps with him and then goes back to the original.

Moon lighting by Lallie Wade October 23, 2008

moonlighting curse 

When the will-they-won't-they couple on a TV show finally gets together... and it ruins the show. (Derived from the 1980's TV show Moonlighting, whose ratings declined to the point of cancellation after the main characters finally resolved their sexual tension)

"I really wish they'd just get together already!"

"As much as I want that to happen, I'd hate for the show to be ruined by the Moonlighting Curse."

"I guess you're right. The show won't be as much fun once the sexual tension is gone."

moonlighting curse by TV Tropes January 12, 2014

moonlighting

holding a second job

He was moonlighting for 3 months.

moonlighting by John lee November 11, 2003

moonlighting

Holding another job at night, often one of a sketchy nature.

Maybe if Jane didn't wear such slutty clothing, people wouldn't believe that she was moonlighting as a stripper.

moonlighting by Victoria May 13, 2005

Moonlighting

To work a second job usually during the moonlit hours.

"I hear that John has been moonlighting every Monday evening"

Moonlighting by LaylaRose September 12, 2011

Moonlighting

A “will they/won’t they” relationship that leans towards “will they”. Somewhere between dating and not dating with mad tension and chemistry

I don’t know what’s going on between them... they’re just moonlighting

Moonlighting by ejsssssssss August 14, 2021

moonlighting

Seeing someone else on the side while you're in a long-term relationship.

I was moonlighting with Dave during the first six months that I was seeing Greg.

moonlighting by don'tWaitUp June 5, 2010