because light travels faster than sound, you get shot in the head before you hear the "boom"!!
Terrorist running in a field 1 mile away...headshot...(second after)...boom! That is a headshot boom!
by Craig Cornforth April 17, 2007
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a gay phrase used by nerds who play first-person shooting games, when playing and they shoot someone in the head they get excited and say BOOOOOM HEADSHOOOT!!!
nerd2134:(takes aim at players head and fires)
n00blet69: darn you got me
nerd2134: BOOM HEADSHOT!!1
n00blet69:get a life that isn't in a computer land assfuker
nerd2134:w00t owned pwned stfu
by btf'07' December 22, 2007
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*This definition applies to Counter Strike*
The act of stabbing your opponent in the face causing instant death to normal enemies, and in very rare cases, inflicting over 700 damage. This maneuver is indisputably the greatest demonstration of one's knifing prowess and overall leetness. A knife headshot also serves as one of the most humiliating deaths that a player may experience while playing CS.

How to execute the knife headshot:
(Required materials - Knife, mouse, and balls of steel)

1. Get your knife out and approach the enemy. The easiest way to set yourself for this maneuver is for your target to agree to a knife duel. This, however, reduces the epic value of the knife headshot. Some other methods of setting up for a KHS is flashing the enemy, the enemy running out of bullets, or if its really dark and you just happen to have NV goggles.

2. As you are about to make contact with the enemy, pitch your aim slightly upwards so that your knife will strike the face. (Note: The cross hair is not always an exact indication of where you will hit your enemy so knife headshots are almost never predicable unless one's extremely skilled with a knife)

3. If performed correctly, the knife should connect with the head and if the victim is wearing a helmet, then yellow sparks may appear along with a burst of crimson liquid.

It is also worth mentioning that in some zombie mod servers, the ones with super fast zombies, knife headshots are much easier to pull off as zombies, probably due to their speed.
Player1: "That stupid noob was spraying me with an AK and ran out of ammo so I ran up to him and got a knife headshot!"

Player2: "Fuckin pwned!!1!"
by lolology November 3, 2007
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The only reason you get killed in Fortnite because your aim sucks
Friend#1: ANOTHER 8 DAMAGE HEADSHOT
Friend#2: Then fix your aim
Friend#3: Yeah it’s obviously your aim
Friend#1: Shut up Fags I don’t play this all the time like you.
by TurtleTron August 8, 2018
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excuse made by the wizard himself ant mele when he dies in cs, often used with combination with the phrase jobber and randomed
damn these lucky newb headshots random jobbers
by Medicinal April 5, 2004
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A cheap-ass verbal victory sign used by bitch-ass gamers like Dynamo. These gamers usually use hacks to fulfill their narcissistic wishes.
by Yeetbreaker July 29, 2019
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when you RAPE someone in halo 3 by getting a noscope headshot on somone with the sniper
by boomy headshot November 25, 2009
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