backgrounding 

A remark that informs an individual they have missed out on background information critical to a joke (or storey).

Joe: Hey Ben, remeber that book?
Ben: HAHA, yes, i'm sure the mice would be pleased with 42.
Joe: HAHAHA
Daniel: What the? Mice?
Ben: (to Daniel) Backgrounding Daniel!
Daniel: Oh. Damn.

backgrounding by Benni ( Zepher ) June 11, 2006

backgrounding 

The act of, or process in partaking in the complete and utter public destruction of the character/reputation of a person of interest via close analysis of their personal life and or past history, in order to exact a detrimental outcome for the person of interest. Usually malicious, or done in revenge.

Stacy didn't like Bryan so she did some backgrounding and got him expelled from college.

backgrounding by S. J. M. October 14, 2021