Green’s Dictionary of Slang

flicking adj.

a euph. for fucking adj.

1944		J. Maclaren-Ross ‘The Phantom of the Cookhouse’ in Bitten by the Tarantula (2005) 172: Flicking waiter. You know, got up posh.
1955		P. White Tree of Man (1956) 78: Which ’usband is she flickin’ well talkin’ of?
1958		P. Larkin letter 28 Oct. in Thwaite Sel. Letters (1992) 291: I know why, ’cos he’s got his flickin livin to get that’s why.
1960		D. Abse House of Cowards (1967) 51: I saw a flickin’ ad in the paper for flippin’ factory workers.
2004		P. Foster Just Beneath My Skin 14: ‘A flicking hose monster,’ she grinned, [...] ‘He wants to take me to Las Vegas.’.