push someone’s wig back
v. phr.— «Revisiting the crime scene, Mr. Roe said the most terrifying moment that night was not when a gang member pointed a gun at his head and threatened to “push his wig back,” slang for shooting him in the head.» —“Fearful Witness Now Faces Trial for a Murder Seen, Then Unseen” by David Kocieniewski in Newark, New Jersey New York Times July 29, 2007. (source: Double-Tongued Dictionary)