Originally Posted by Rio
Unsure, two signs come to mind.
i suck at explaining stuff clearly but i'll try my best lol
for GOOF- make a "G" sign on the middle of your forehead and sign as if you're twisting something. same thing for JERK except it's on the side of your head, not middle of forehead.. not sure if the other people here have different signs for it but that's how we sign it here.