Someone who had sex with their relatives; attracted to their family members; used to sleep with their siblings, parents etc; commits incest; incesting.
Oedipus was a well known incestor.
by Mister definitions February 12, 2018
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Ur Ancestors Incestors is a failed attempt at creating the most powerful roast in existence.

It was calculated to have power beyond "Ur Family Tree LGBT", but actually caps off around Ur Dad Lesbian. Not many know of this though, and it is often misused.
Carl: Ur Granny Tranny
John: You fool... You brought this upon yourself... Ur Ancestors Incestors!
Carl: Yeah I guess they are
John: *Explodes due to lack of defense*
by A Fat Penguin April 2, 2018
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God in word form. Beats any and all insults thrown at you or any people you want to protect in a 5 mile radius.
"Your family tree lgbt" shivers in its presense.
Mark: "Ur mom gey xd"
Tom: "Do you really want me to bring out the trump card?"
Mark: "Ha! Your family tree lgbt"
Tom: "Your ancestors incestors."
*Mark, in an instant, ceases to exist and all his relatives are turned into a giant ball of energy wich continues to destroy any and all living beings and the universe as we know it*
by Gigagasu lul March 29, 2018
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The worst insult possible, it will erase you from existence.
Jeff: fuck you billy
Billy: don't make me do it
Jeff: do it u pussy
Billy: your ancestors incestors
Jeff: SHI... (Jeff gets erased from reality itself)
by GSLpt March 27, 2018
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