Negative skill 

Attempting to perform an elaborate skill but failing at this task

Glen attempted to get past gavin by using skill but this resulted in negative skill

Negative skill by fassiej March 21, 2015

Negative Skill 

What the Champ2025 has on TarminStreams's Twitch channel

Look at that guy who has negative skill, he must be TheChamp2025

Negative Skill by Hello Mario December 18, 2021

negative skillz 

A response to when a person commits a misdeed by mishap, poor judgment, or deception.

guy 1: "He got his girlfriend pregnant."
guy 2: "What happened? Did the condom break?"
guy 1: "No, he didn't wear one."
guy 2: "Negative skillz!"

friend 1: "I can't believe he flaked out on us again!"
friend 2: "Negative skillz!"

negative skillz by notkasuo June 18, 2008