text: how can you knock someone out in a street fight?   i've been in 4 - 5 hundred fights and my primary knockout punch is a hook to the temple. jab to the nose will cause them to close up in the front and then a left or right hook.   also something i learned from karate is to visualize my fist not making contact til it hits the inside of the opposite side of their head, it causes a devastating punch if done properly like a horse kicking them.