unclefucker

Noun

 * 1)  One who engages in incest with their uncle.
 * 2)  One who engages in sex with an uncle.
 * 1)  One who engages in incest with their uncle.
 * 2)  One who engages in sex with an uncle.
 * 1)  One who engages in incest with their uncle.
 * 2)  One who engages in sex with an uncle.
 * 1)  One who engages in incest with their uncle.
 * 2)  One who engages in sex with an uncle.

Usage notes
Popularised by the song "Uncle Fucka" in South Park: Bigger, Longer, Uncut, a 1999 American adult-animated comedy film.

Translations

 * Czech:
 * Polish: wujkojebca