Green’s Dictionary of Slang

fucking adv.

1. (also fracking) a general intensifier, totally, completely, e.g. fucking stupid.

[UK]Proc. Old Bailey 20 June 703: The deceased came to the door and holloaed out, ‘I will serve you the f——same’.
[UK]K. Amis letter 22 Dec. in Leader (2000) 267: Here I am and here I bloody fucking bastard buggering sodding pissing shitting stay.
[UK]C. Lee diary 5 Nov. in Eight Bells & Top Masts (2001) 174: Fucking right, he says. Fucking right.
[UK]A. Burgess 1985 (1980) 135: Life is so fucking dull.
[US]B. Gutcheon New Girls (1982) 227: He’s so fucking gorgeous.
[Aus]D. Maitland Breaking Out 280: You fucking undernourished ugly little prick!
[UK]A. Sayle Train to Hell 23: It used to be fucking awful.
[US]P. Munro Sl. U. 85: fucking 1. incredibly, very, totally, completely.
[US]J. Stahl Permanent Midnight 73: I can’t fucking stand the life I’m living.
[UK]G. Burn Happy Like Murderers 303: You fucking little this and you fucking little that. I’ll fucking have you. Fucking watch it, boy.
[UK]N. Barlay Hooky Gear 3: We’s fuckin proper leggin it again.
[Aus]me-stepmums-too-fuckin-hot-mate at [Internet] Shit, Kyo-kun, you’re fuckin’ bleeding!
[US]S. King Finders Keepers (2016) 302: Oooh, these goddam pop up ads make me me so fracking crazy!

2. used, usu. in the negative, to imply definitely (not), certainly (not), e.g. fucking thanks.

[UK]M. Amis letter in Experience (2000) 193: Fucking thanks for the lunch Dad.
The Who ‘Dr Jimmy’ [lyrics] on Quadrophenia [album] Her fella’s gonna kill me / Oh, fuckin’ will he!

In phrases

fucking well (adv.) (also shagging well)

generally used for emphasis, absolutely, very well, very much, extremely.

[UK]‘J.H. Ross’ Mint (1955) 71: She’ll stay as she fuckin’ well is till I’ve had me bleedin’ conner.
[UK](con. 1914–18) Brophy & Partridge Songs and Sl. of the British Soldier 17: By adding -ing and -ingwell, [to fuck] an adjective and an adverb were formed and thrown into every sentence. It became so common that an effective way for the soldier to express emotion was to omit this word.
[US]E. Hemingway letter 20 Apr. in Baker Sel. Letters (1981) 590: If he doesn’t take care of you he’d better never fucking well run into me.
[UK] in G. Westwood A Minority 138: He was an awful detective – threats, swear words – I’ll f---ing well bash you.
[US]T. Thackrey Thief 307: Fucking well-told you do!
[US]P. Maas Serpico 205: Get this fucking-well straight, Stanard. I’m not sticking my neck out for you.
[Aus]B. Humphries Traveller’s Tool 18: He’d probably end up in New Zealand which would serve him fucking well right.
[Ire]J. O’Connor Secret World of the Irish Male (1995) 222: Jayzus, Ref, yeh’re a shagginwell dope.
[UK]K. Sampson Powder 333: The band meeting could fucking well wait.
posting at 2 Apr. [Internet] They underestimated demand? I should fucking well say so.