green thumbing 

Someone who cheats while playing "Guitar Hero" by placing a rubber band around the green button, limiting the number of buttons one needs to press, in order to obtain a higher score on the Hard or Expert difficulties.

"Dude! Did you hear that John got 100% on "Through The Fire and Flames???"

"Whatever. I heard he was green thumbing. I'd have to see it to believe it."

green thumbing by Gustafae March 9, 2008