assfuck, n. — Green’s Dictionary of Slang

assfuck n.

(orig. US)

1. an act of anal intercourse.

1941		G. Legman ‘Lang. of Homosexuality’ Appendix VII in Henry Sex Variants.
1965		Guild Dict. Homosexual Terms 2: ass-fuck [...] (n.): The act of pedication.
1974		‘Linda Lovelace’ Diary 66: He gave me the best ass-fuck I’ve ever had.
1989–2003		R.O. Scott Gay Sl. Dict. 🌐 assfuck: [...] 2. an act of anal intercourse.
1991		W.T. Vollmann Whores for Gloria 153: Ass fuck $60–$75.
2002		www.xxx-assfuck.com 🌐 XXX ASS FUCK XXX ASS FUCK hardcore interracial anal sex pictures of xxx-rated nasty ass fucking!

2. an instance of cruel victimization.

1977

Schrader Blue Collar 14: No way was he gonna take this ass-fuck forever [HDAS].

3. an all-purpose derog. term of address.

2002		www.imbum.com 🌐 Grunt, You ass fuck! You ripped off of me!
2004		B. Wagner Still Holding 185: I’m an assfuck loser.

In phrases

Assfuck, Nowhere (n.)

(US) any place condered beyond civilization.

2015

‘Chelsea G. Summers’ in Vice 28 Apr. 🌐 Our shared cluelessness, crazed hormones, and upbringing in the Middle-of-Assfuck-Nowhere, Vermont, added up to bupkis, knowledge-wise.