Green’s Dictionary of Slang

motherfuck n.

[abbr. motherfucker n.]
(orig. US)

1. a highly derog. term for a person or an object.

[US]R. Buehler Annotated Collection of Obscene Humor 39: Won’t you gentlemen kindly fasten your seat belts, while I try to get this motherfuck off the ground.
[US]N. von Hoffman We are the People Our Parents Warned Us Against 256: Give us our bread back, motherfuck.
[US]C. Fuller Jr ‘Love Song for Wing’ in King Black Short Story Anthol. (1972) 147: He pointed [...] to Reuben, leaned back, and said, ‘jive mothafu ...’.
[US](con. 1970) S. Wright Meditations in Green (1985) 46: Watch close, motherfuck.
[US]R. Cea No Lights, No Sirens 204: I wanted to show him what it felt like to have an indifferent and condescending motherfuck of a partner.

2. a damn n., as in I don’t give a motherfuck.

[US]‘Iceberg Slim’ Pimp 270: I wouldn’t give a mother-fuck.
Mobb Deep ‘Flavor For The Non Believes’ 🎵, Juvenile Hell [album] Cause I don’t give a motherFUCK, and you do / That’s why your stupid ass got bucked / Outta luck.

3. the hell, e.g. get the motherfuck out, what the motherfuck.

[US]N. De Mille Smack Man (1991) 61: How the motherfuck do a pimp’s girl get jealous, man?
[US]J. Allen Assault with a Deadly Weapon 188: You better get the motherfuck out of my place.
[US](con. 1970) J.M. Del Vecchio 13th Valley (1983) 309: Numbnuts, where the motherfuck is the C-4? [Ibid.] 193: I bet Nguyen’s pissed the holy motherfuck off at us.
M. Pockat Battle Of Fucking Big Times 🌐 ‘Shit!’ spat Temple Master. ‘What the motherfuck could happen that would make any of this possibly worse?’.
[US]L. Berney Gutshot Straight [ebook] ‘Who the holy motherfuck [...] ever asked you’.

4. in fig. use, the essence.

[Aus]J.J. DeCeglie Drawing Dead [ebook] Did you hear about me beating the living motherfuck outta some goons.