sibling fucker
In real, traceable use. Part of the curated seed collection; community review is coming.
Sense 1
Meaning · English
One who engages in incestuous sex with their sibling.
Register: derogatory, slang, vulgar
Where it’s used:
Used
American English
Examples
2006, addinall, Re: If I was an Iraqi, I'd chop fat pig wood's head off Group: aus.tv
It seems that only half of all Americans are brain damaged sibling fuckers
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Sense 2
Meaning · English
A motherfucker (a generic term of abuse).
Register: derogatory, slang, vulgar
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “sibling fucker” mean?
One who engages in incestuous sex with their sibling.
Is “sibling fucker” formal or informal?
sibling fucker is generally derogatory, slang, vulgar.