one with controversial opinions about religion, politics, etc. extremely rebellious against government
halo 2, heretic leader opposed prophecy
by Tyler D Stenbuck July 09, 2005
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Anyone who engages in actions, statements, or thoughts against the Imperial Truth of the God-Emperor of Mankind.

Such categories for groups that would be classified as Heretics include, but are not limited to: Furries, SJWs, anime girls, communists, anarchists, Nazis, environmentalists, etc.
Furry: UWU

Brother Midael: "Heretic! I've got you now!" *Proceeds to decapitate the furry heretic*
by The Doge-Emperor of Dogekind February 02, 2020
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A siphoner witch who is also a vampire
"Damn it that is not a vampire, that is a heretic, he is very powerful"
by AlphaWolf881 March 20, 2020
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A broad term usually applied to: Orks, furries, feminists, college students, Tumblr users, Reptilians, and ten year olds.

According to the Heresy Decree by the Law of the Imperial Truth, any members within these groups is automatically deemed a heretic.
Brother Midael: "The heretics......... the lowest form of living creature in reality."
by Weaponized Dank Ootism June 24, 2019
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A broad term usually applied to the lowest forms of humanity out there: Orks, furries, feminists, college students, Tumblr users, Reptilians, and anime goddesses.

According to the Heresy Decree by the Law of the Imperial Truth, any members within these groups is automatically deemed a heretic.
According to the Codex Astartes, "All Heretics are to be purged instantly. If non-Heretics are found sheltering, befriending, or in any way expressing sympathy to a Heretic, they are, themselves, Heretics, and are to be purged at once."
Brother Midael: "Heretics....... the lowest form of creatures in existence."
by Weaponized Dank Ootism June 24, 2019
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Is the most badass mutha fucka from Hell!!
MUHAHAHAHAHAHHA!!!!
Here tic is teh Masta!
by Josh November 09, 2004
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