Green’s Dictionary of Slang

screwing adj.

[screw v. (2a)]

a synon. of fucking adj.

[US]T. Heggen Mister Roberts 125: What a miserable screwing outfit! [...] What a miserable screwing life!
[US]B. Appel Plunder (2005) 218: Yeah, stockade’s the wrong screwen place to make a peso!
[US]J. Rechy City of Night 314: The whole screwing world loves too little.
[US](con. c.1900) J. Thompson King Blood (1989) 30: Mothersuckin’ turd, grannygobbler, jismeater, screwing little shit.