Comes from Halo 1. It is when you melee some one in the back of the head and kill them with one blow (schwack).
I was on Blood Gulch and came across a sniper he didn't know I was behind him so i gave him a schwack and took his sniper rifle then proceeded to go on a killing spree!
লিখেছেন- G.B. 17 de অক্টোবার de 2005