# sibling fucker

> English word · Noun

## Definitions
1. One who engages in incestuous sex with their sibling.
2. A motherfucker (a generic term of abuse).

## Etymology
From sibling + fucker.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/sibling-fucker