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1) The act of killing a God, or deity as the name states. A mixture of deity (god) and homicide (the killing of man (and woman)).

2) The most brutal band alive, Glen Benton is a fucking satanic GENIUS!!!
1) If you were to kill a God, you would have commited Deicide.

2) Listen to "Scars of the Crucifix" and you will find out!
by Metal Insanity March 09, 2007
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1.To Kill A Deity.
2.The Fucking Most Evil Band Ever (Sorry manson kids, manson is a fucking fag)
1.By Killing Christ, the romans comitted Deicide

2.I went to the Deicide concert in Corona CA
by George M. (858) June 23, 2003
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1-The act of killing a Deity ("God")

2-A moderately good Death Metal band, fronted by sir Benton of Glenn
1-Alan Swieszewski:"I wish someone would be a deicide"

You idiot!
I believe you had meant to say:
I wish someone would commit the act of Deicide against **insert "Gods" name here**.

2-Deicide fucking ruled when they played with Sabbat and Akercocke in Nottingham!
by Valoch.D.M November 04, 2004
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One of the most fucking badass classic death metal bands ever, their first 3 albums are fucking masterpieces. Something even Christians/Bible bashers deserve to hear at least once.
Yeah, I'm christian and I listen to Deicide, got a problem with that?
by deicidefan666 July 29, 2011
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The killing of God or of a god, used more often metaphorically than literally.
The Christian church commits grave acts of deicide.
by Omniverse March 28, 2003
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1. A classic Death Metal band known for Satanistic philosophies.

With a new lineup (Jack Owen of Cannibal Corpse and Ralph Santolla of Death/Celtic Frost on guitars) they are now a much more composed, neoclassically-influenced band, retaining the dark fast pounding rhythmic sound they are known for. - Glen Benton has also improved his vocal capabilities.

They are also no longer the least responsible band when it comes to making tour dates.

2. To kill a God. Usually referring to the killing of Jesus of Nazareth (Christ).
"Deicide is better than ever!"

"The Romans committed an act of deicide."
by Death to Jesus October 17, 2006
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