Like the silver backed gorilla - The Alpha male may mate with all the Alpha females & has first pick of food. When a guy shows his superiority over another male by daring to turn his back towards the other.
Harry: "It's a man thing - that guy was really askin' for it." "Don't underestimate Brian, he's not afraid of shit, anywhere. He's a sleeper in strength, lighting fast, & he's got endurance." "Notice that idiot calmed down after Brian silver backed him?"
Stella: "Yeah he did. I guess you're right."
Guy 2: Yeah i Silver Backed her!!!!!
Jake: Yeah he did, but it's a silverback.
John: Lol his parents must be cheap!