Green’s Dictionary of Slang

(orig. US) euph. for motherfucker n.; thus m-eff v. to call someone a motherfucker .

1959		Jazz Rev. Sept. 7: You go and buy me a tenor saxophone and I’ll play the m-f.
1967		P. Thomas Down These Mean Streets (1970) 245: Oh shit, I thought, you poor m.f. One way or another, some bastard puts us down.
1971		B. Malamud Tenants (1972) 151: The blacks have to murder you white MF’s for cripplin our lives.
1980		Jackson & Christian Death Row 201: I was cussing every other breath, every word that come out of my mouth was MF, SB, GD.
1992		R.C. Cruz Straight Outta Compton 70: She called him a black m.f. and tossed a glass of Old Tom in his face.
1997–2000		College Sl. Research Project (Cal. State Poly. Uni., Pomona) 🌐 Micky ficky (noun) It is synonomous to mother f*#ker. (It is a nicer way to say M.F. It was taken from the movie ‘Do the Right Thing’ [Spike Lee’s] and it was taken from when the movie was aired on public TV. Micky ficky was used as a voice over for M.F.).
2006		J. Ridley What Fire Cannot Burn 95: The toughest roughneck shield-wearing MFs on the planet.
2019		D. Winslow Border [ebook] ‘Who you m-effing, motherfucker?!’.