Underperforming 

Batman used to be a beast in year 7, but now that kid MAD underperforms.

"Why was Batman's presentation so bad?"

"'Coz she's underperforming."

Underperforming by ZaneyP00 April 5, 2022

Triple Under Performing 

Triple Under Performing, is when your below the lowest guy, your worse than even the guy that did nothing.

56% of your salespeople are triple under performing.... Might as well fire them!

Triple Under Performing by aim alytics February 17, 2010