Professional Incest 

When professionals aren't hide for their skill but for political reasons of power, wealth, property and prestige.

The United Nations is run by a bunch of people who are into professional incest because they each think political aspirations are more more important than genuine human suffering.

Professional Incest by Awkward Life Subjects defined October 30, 2021

Professional Incest 

When you date or marry somebody in a similar line of work to your own, or even worse if it is with a colleague.

Person 1: did you hear that John is getting married?

Person 2: Really? I didn't even know he had a girlfriend!

Person 1: yeh he's been seeing Mary from HR for about 2 years!

Person 2: eugh, that's professional incest!

Professional Incest by borntoboogie October 21, 2010