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1.
A high-tech Zerg unit from the classic RTS Starcraft. Has the abilities Plague, Dark Swarm and Consume, and Burrow. Has no attack of itself, but using its abilities enhances any Zerg ground force.
Man, that Defiler just plagued my Battlecruisers!
by Skree October 20, 2006
 
2.
A professional counter-strike player who is very pro at gaming. Well known for being IRC's biggest op whore and his hit single, My Name Is DeFiLeR, he is also good at life (probably).
Progamer: Shit, i wish my name was defiler
DeFiLeR: (Y)
by demaS July 05, 2005