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3.
Derived from an award on Halo whereby the player gains 4 kills in rapid succesion *aka they pwn you real bad*

Now an online synonym for anyone who dishes out the pwnage big time
pwnage! that was KILLTACULAR!
by Arrow January 08, 2005
 
1.
In Halo video game series, when you kill 4 opponents within 4 seconds of each other. When someone gets a killtacular, it is announced to that player by the Halo announcer.
The announcer in Halo yelled "Killtacular!"
by Zach Dorsett October 04, 2005
 
2.
To merc people in Halo hard.
Killing 4 or more people in rapid succession.
I hear killtacular a lot when I play
by SirHumpsAlot July 03, 2003
 
4.
A term said by the Halo 2 announcer when a player kills four players in a row in very rapid succession.
"you coax, what does killtacular mean?"
"It's like the thing you do with underage teens, 4 in a row, 4 seconds between"
-Futuristic sex robotz
by Zakkkk December 01, 2007
 
5.
1. Getting 4 kills in 4 seconds in the Halo: Combat Evolved or Halo 2 video games.

2. Something impressive or spectacular.

3. ownage.
These Chilidogs are killtacular.

Double Kill. Triple Kill. Killtacular!
by CalibMatlock August 10, 2006
 
6.
1: The sound made when you have killed 4 or more people in a short amount of time
2: Severe ownage
3: Sound I make when I kill people
Ha you got owned! I was shoving hte killtaculars down your throat!
by BondageBoyo August 15, 2004