Definitions by UT Fan

monster kill 

Sound/token gesture made upon whence you kill 5 or more people in Unreal Tournament. Introduced in the newer version is "Ludacris"; although Monster Kills are much more popular due the the satisfying 'Muhmuhmuhmuhmuhmuh MONSTER KILL-KILL-KILL'.

So popular that even the game Half-Life uses the same sound in varient games.

I killed 5 people in 15 seconds and then I heard this totally bad sound!
MONSTER KILLKILLKILL!

monster kill by UT Fan August 28, 2003