Self-harm involving a razor blade, usually across the wrist in a horizontal motion, reminiscent of how a violinist holds the bow and runs it back and forth when playing.
"Sarah's been playing the gillette violin recently; those cuts look fresh."
"You are infectious human waste. Go home and play the gillette violin"
When you suddenly develop a strong case of different types of hate, Mainly racism. Also will share shit AI generated images on facebook.
"Damn, what is that guys problem?"
"Oh he just has gillett syndrome"